SOLUTION: how do i work out fractions which are like 1 3/4 + 2 7/8 = HELP!

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: how do i work out fractions which are like 1 3/4 + 2 7/8 = HELP!      Log On


   

Question 677777: how do i work out fractions which are like
1 3/4 + 2 7/8 =
HELP!
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
either convert them to improper fractions and add
1 3%2F4 = 4*1=4+3=7, so 7%2F4
2 7%2F8 = 8*2=16+7=23, so 23%2F8
%287%2F4%29%282%2F2%29+%2B+%2823%2F8%29+=+14%2F8+%2B+23%2F8+=+37%2F8 = 45%2F8
OR
1 3%2F4(2%2F2
+2 7%2F8
______________
1 6%2F8
+2 7%2F8
______________
3 13%2F8
from the 13%2F8 pull out (subtract) 8%2F8 as 1
3+1 and 13%2F8+-+8%2F8+=+5%2F8
yielding
45%2F8