i need help please
2007-07-10 09:36:56 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Place in common denominators, and convert to improper fractions. In this case, you have to convert everything to 8ths
3 7/8 = 3*8/8 + 7/8 = (3*8+7)/8 = 31/8
1 3/4 = 1*8/8 + (3/4)*(2/2) = (1*8 + 3*2)/8 = 14/8
Now you can just add:
31/8 + 14/8 = (31 + 14)/8 = 45/8
Then covert back to mixed form:
45/8 = (40+5)/8 = 40/8 + 5/8 = 5 + 5/8 = 5 5/8
2007-07-10 09:39:00 · answer #1 · answered by McFate 7 · 0⤊ 0⤋
Change everything to fractions with the same denominator.
3 7/8 = (3*8 + 7)/8 = (24+7)/8 = 31/8
1 3/4 = (1*8 + 3*2)/8 = (8+6)/8 = 14/8
now you can easily add the two fractions
31/8 + 14/8 = (31+14)/8 = 45/8
now you need to reduce the fraction
since 5*8=40, you can simplify
45/8 = 40/8+ 5/8 = 5 5/8
2007-07-10 09:47:27 · answer #2 · answered by Katie 3 · 0⤊ 0⤋
3 7/8 + 1 3/4
(8*3+7)/8 + (4*1+3)/4 = 31/8 + 7/4
now get a common denominator of 8 by multiplying the second fraction by 2/2
31/8 + (7/4)*(2/2) = 31/8 + 14/8 = 45/8 = 5 5/8
2007-07-10 09:43:30 · answer #3 · answered by grompfet 5 · 0⤊ 0⤋
The solutions above are great, regardless of the undeniable fact that, unsuitable fractions may well be ordinary to artwork with too. 3 7/8 + a million 3/4 can get replaced to 31/8 and seven/4. the easy denominator will become 8 so 7/4 must be elevated by making use of two on the two the numerator and denomenator. 31/8+14/8=40 5/8 8 is going into 40 5 5 situations and has 5 left over supplying you with the respond 5 5/8
2016-12-14 05:01:00 · answer #4 · answered by lacuesta 4 · 0⤊ 0⤋
first covert the given to fractions completely.
here, u r given 3 7/8. u can simply convert this to improper fraction by
((integer given before the fraction*denominator)+the numerator)/denominator
that is 3 7/8 =((3*8)+7)/8=31/8
similarly 1 3/4 = ((1*4)+3)/4=7/4
now 31/8 +7/4 = (31+7*2)/8, 8 is the least common multiplier of 4 & 8. the rest is done normally.
answere : 45/8
2007-07-10 10:01:24 · answer #5 · answered by In Flames I Lay Dying 3 · 0⤊ 0⤋
first covert the given to fractions completely.
here, u r given 3 7/8. u can simply convert this to improper fraction by
((integer given before the fraction*denominator)+the numerator)/denominator
that is 3 7/8 =((3*8)+7)/8=31/8
similarly 1 3/4 = ((1*4)+3)/4=7/4
now 31/8 +7/4 = (31+7*2)/8, 8 is the least common multiplier of 4 & 8. the rest is done normally.
answere : 45/8
2007-07-10 09:58:57 · answer #6 · answered by taukir_imam 1 · 0⤊ 0⤋
3 7/8 + 1 6/8
4 13/8
4 + 1 5/8
5 5/8 = 45 / 8
2007-07-10 10:47:43 · answer #7 · answered by Como 7 · 0⤊ 0⤋
Muliply 3&8,then add 7,similarly multiply 1&4
then add 3
So (3*8+7)/8 + (1*4+3)/4
Or 31/8 +7/4
Or (31 + 7*2)/8 Taking LCM
Or 45/8 ANS
2007-07-10 09:49:47 · answer #8 · answered by MAHAANIM07 4 · 0⤊ 0⤋
(3 7/8) + (1 3/4) = 5.62500
2007-07-10 09:44:26 · answer #9 · answered by Gengis 6 · 0⤊ 1⤋