This is true for all of the problems, just plug it in!
81/6 = 13.5
22/3 = 7.33
1) 13.5 + 7.33 = 20.83
2) 13.5 - 7.33 = 6.17
3) 13.5 * 7.33 = 98.955
4) 13.5 / 7.33 = 1.8417
Is that what you meant?
2007-12-15 16:01:38
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answer #1
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answered by Anonymous
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81/6 + 22/3=?
The denominators for 81/6 are 6 and 22/3 is 3. So we need to take the common denominator. It should be 6 as 6 can be divided by 6 itself and by 3. now make the denominators equal for both the values. So now the figures should be 81/6+44/6
As the denominators are common now, we can simplify as (81+44)/6 which is 125/6.
In the same way you can do subtractions .
For multiplications 81/6 * 22/3, just cross divide.
(81/3=27.)
=27*22/6=99.
to divide you invert and mulitpy
so it is
81/6 x 3/22 = 243/132
2007-12-15 16:02:28
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answer #2
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answered by V J 1
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Ok
1. To add or subtract fractions you need common denomonators(the numbers on the bottom) so u have 81/6 and 22/3. 22/3 is the same as 44/6 because it is just multiplied by 2. so 81/6 - 44/6 and you just subtract the top numbers. so u will get 37/6. u just add the tops when u do addition. to multiply, u still use 44/6 and u multiply 81 x 44 over 6 x 6. To divide fractions u flip the second number and multiply. So 81/6 x 3/22.
2007-12-15 16:02:24
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answer #3
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answered by NOT aNOTher blonde! 3
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81/6 + 22/3 = 81/6 + 44/6 = 125/6 = 20 5/6
81/6 - 22/3 = 81/6 - 44/6 = 37/6 = 6 1/6
81/6 * 22/3 = (81*22)/(6*3) = 1782/18 = 99
81/6 divided by 22/3 = 81/6 * 3/22 (reverse the second fraction) = 81/44 = 1 37/44
2007-12-15 15:59:52
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answer #4
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answered by Big Red 2
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Now I am sure your teacher wouldn't want me giving you all the answers so I showed you how to do the first take these rules and apply it to the others and that should help.
81/6 + 22/3 =
Your CMD is 6 therefore 6 goes into 6 once making it 81/6 however with 22/3 the dominator goes into the 6 twice making the 22 a 44. You have to cross multiple to get this. So now, you have 81/6 and 44/6 making your answer 125/6.
If you need any additional help feel free to contact me.
2007-12-15 15:58:59
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answer #5
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answered by alyricialgenius 2
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8 1/6 = 8 1/6
+2 2/3 = 2 4/6 (changed 2/3 into 4/6 so we have a common denominator)
=10 5/6
8 1/6 = 8 1/6 = 7 7/6 (cannot subtract 1/6 from 4/6 so we borrowed from the whole number 8)
- 2 2/3 = 2 4/6 = 2 4/6
= 5 3/6 or 5 1/2
8 1/6 X 2 2/3 = 49/6 X 8/3 (converted both whole numbers into improper fractions for multiplication) = 49x8 / 6x3 = 392/18 = 21 14/18 or 21 7/8
8 1/6 divided by 2 2/3 = 49/6 divided by 8/3 (like above) = 49/6 X 3/8 (changed division problem into a multiplication one by reversing the second fraction) = 147/48 = 3 3/48 or 3 1/16
2007-12-15 16:08:25
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answer #6
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answered by ycartf 2
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8 1/6 + 22/3. 1.) make 8 1/6 an improper fraction 49/6 2.) find a common denomanatior, i.e. 6...22/3 becomes 44/6 4.) add the top numbers together...93/6. 5) make it a mixed number 15 1/2.
8 1/6 - 22/3/ Follow the same 1-3 steps of the first one. 4.) substract the top numbers. The answer is 5/6.
I don't remember how to mult the fractions :( Sorry I couldn't help on that one...I think you just mult across...but I could be very wong.
8 1/6 divided by 22/3. 1.) make 8 1/6 an improper fraction, 49/6. Cross mult. i.e., mult 49 times 3 and put that number on the top of the result fraction. mult 6 times 22 and put that number at the bottom of the result fraction. You would have 147/132. Make it a mixed number. 12 1/4 is your answer.
--Sorry for all the spelling mistakes :(
2007-12-15 16:06:05
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answer #7
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answered by In Love 2
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when adding and subtracting get common demoninators
when multiplying multiply tops and bottoms
81/6 + 22/3
is really
81/6 + 44/6
because for common denominators you have to multiply the top and bottom of the second fraction by two
now add numerators
so
81/6 + 44/6 = 125/6
81/6 - 22/3
same for this
81/6 - 44/6
so it equals
37/6
81/6 x 22/3
for this multiply the numerators and then the denominators
basically
(81*22)/(6*3)
=1782/12
=891/6
when dividing just multiply by the reciprocal (flip-flop) of the second fraction
so
81/6 DIVIDE 22/3
is really
81/6 * 3/22
so
(81*3)/(22*6)
=243/132
2007-12-15 16:05:38
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answer #8
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answered by TS 2
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81/6 + 22/3
you have to get them with the same denominator so muliply 22/3 by 2
81/6 + 44/6
=125/6
pretty muct the samefor the next , times the 2nd one by 2
81/6- 44/6
=37/6
with multiplying you just times the numbers straight across so its
81 x 22 divided by 3 x 6
or 81 x 22/ 3 x 6
1782/ 18 = 99
the last one
to divide you invert and mulitpy
so it is
81/6 x 3/22 = 243/132
2007-12-15 15:57:39
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answer #9
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answered by Anonymous
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First find the lowest common denominator.Then convert 22/3 to a whole number and the 6ths,. Take it from there.My grandchildren in the fifth grade did the examples without blinking an eye.
2007-12-15 16:02:28
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answer #10
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answered by googie 7
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81/6 + 44/6 = _____
(81+44)/6
125/6
good luck with the other problems
the concept is
a/b + c/b = (a+c)/b
you can only add if you have the same denominator which in this case is b
2007-12-15 15:58:06
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answer #11
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answered by analyn 3
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