Convert the mixed number to improper fractions
3 4/5 / 2 3/8 =
19/5 / 19/8 =
19/5 x 8/19 =
The 19 cancell
8/5
- - - - - - - - - s-
2007-04-11 03:29:08
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answer #1
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answered by SAMUEL D 7
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Mixed fractions are useless in math, so convert them to improper fractions first. That gives you (19/5)/(19/8). Then yes, you flip the second one, because division is multiplication by the recipricol. Thus 19/5*8/19. The 19s cancel out leaving you with 8/5.
On your second question, 3-7=-4 in the numerator. In the denominator -6-(-7) is the same thing as -6+7 which equals 1. Since 1 is in the denominator, you can leave it out so your answer is -4.
2007-04-11 02:46:23
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answer #2
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answered by Daniel 3
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change the numbers to fractions.
3 4/5 = 19/5
2 3/8 = 19/8
19/5 / 19/8 = 19/5 * 8/19
19/19 = 1 so they cancel and left with 8/5 = 1 3/5
3-7=-4
-6- (-7)= -6+7= 1
2007-04-11 02:46:37
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answer #3
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answered by er.doctor 2
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Question 1.
3 4/5 = [ (3*5) + 4 ] / 5 = 19/5....................(A)
So also 2 3/8 = 19/8..................................(B)
Now, A / B = (19/5) / (19/8)
=(19/5) * (8/19)
=8/5 = 1 3/5 (Answer)
Question 2.
Numerator = 3 -7 = -4
Denominator = -6- (-7) = -6+7 = 1
That gives Numerator/Denominator as -4/1 = -4 (Answer)
2007-04-11 03:01:33
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answer #4
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answered by Sam 7
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no u do not turn both of them over ....this is how u do it
U change it into ..3.4/5=19/5
2.3/8=19/8
19/5 divided by19/8
u switch onli the first one
5/19x19/8=5/8
Is this want u wanted?
Okay question 2
3-7= -4
-6-(-7)=
the minus before the ( must multiply with the one on the inside of the bracket
So,u get -6+7 because minus x minus = +
-6+7=1
now u divide
-4 divided by 1 = -4
Got it??
Sry if it is a little confusing try to understand...
2007-04-11 02:52:47
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answer #5
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answered by big_swords 2
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You need to change your fractions from mixed numbers, those won't work.
3 4/5 -> 19/5 --> 3 * 5 + 4 is the new numerator
2 3/8 -> 19/8
19/5 * 8/19
19's cancel out
8/5 is your answer
2007-04-11 02:44:42
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answer #6
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answered by Joy M 7
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3 4/5 = 19/5
2 3/8 = 19/8
so, 19/5 / 19/8 = 8/5 (multipy top and bottom by 8/19)
2) 3-7 = -4; -6+7 = 1 , -4/1 = -4
2007-04-11 02:43:15
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answer #7
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answered by Anonymous
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lol. u've got me off my chair to look for a scratch paper.
3 4/5 = 19/5
_____ ____
2 3/8 19/8
=> 19/5 (8/19) = 8/5 = 1 3/5
3 - 7
____
-6 -(-7)
= -4
____
1
= -4
2007-04-11 02:50:36
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answer #8
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answered by Anonymous
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3 4/5
_____=?
2 3/8
then it is basicly,
(3*5)+4
______
5
_____________
(2*8)+3
_______
8
and it equals to
19/5
_________ = 8/5=1,6
19/8
and second question equals to the following
3 - 7
_________ = -4/1= -4
-6 - (-7)
2007-04-11 02:51:39
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answer #9
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answered by graduate applicant 2
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try to change the mixed number into an improper fraction:
after that go on into dividing fractions:
in dividing fractions always invert the denominator and multiply the inverted denominator to the numerator...
after you got the product if it's an improper fraction simplify it by making it into a mixed number ^^,
2007-04-11 02:45:06
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answer #10
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answered by (,") Verns (",) 3
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