denominator????

0 ⤊

Can you help me with this problem

43 1/13 - 7 5/8

or 42 1/11 - 182/3

2007-08-12 09:14:47 · 3 answers · asked by mount_tyler 1 in Science & Mathematics ➔ Mathematics

3 answers

write the problem like this
43 1/13
- 5 5/8

times 13 by eight to get the common denominator: 164.
Then work like a normail fraction problem with common denominators!

2007-08-12 09:25:41 · answer #1 · answered by Anonymous · 0⤊ 0⤋

43 1/13 = 560/13
7 5/8 = 61/8
the problem becomes
560/13 - 61/8 = [560(8) - 61(13) ] / (8*13)
4480-793 / 104
3687 / 104=
35 47/104

42 1/11 - 182/3
463/11 - 182/3= common denom = 33
1389/33 - 2002/33 = -613/33
- 18 19/33

2007-08-12 16:31:02 · answer #2 · answered by 037 G 6 · 0⤊ 0⤋

560/13-61/8=4472/104-793/104=3679/104=35 3/8

2007-08-12 16:25:29 · answer #3 · answered by Anonymous · 0⤊ 0⤋