If a/b=7/5 and b/c=3/8, what is a/c?
回答 (5)
2009-08-29 10:22 am
✔ 最佳答案
(7/5)(3/8)= 21/40
2009-08-29 5:39 pm
( a / b ) ( b / c ) = a / c
( 7/5 ) ( 3/8 ) = a/c
21/40 = a/c
( 7/5 ) ( 3/8 ) = a/c
21/40 = a/c
2009-08-29 3:16 pm
21/40
2009-08-29 3:14 pm
the answer will be 21/40.
to get a/c, you have to cancel out the b. for that, you need to have it in the form a/b * b/c. it's easy enough from there. good luck.
to get a/c, you have to cancel out the b. for that, you need to have it in the form a/b * b/c. it's easy enough from there. good luck.
2009-08-29 3:13 pm
a/b = 7/5
b/c = 3/8
(a/b)(b/c) = (a/c)(b/b) = a/c
a/c = (a/b)(b/c) = (7/5)(3/8) = 21/40
b/c = 3/8
(a/b)(b/c) = (a/c)(b/b) = a/c
a/c = (a/b)(b/c) = (7/5)(3/8) = 21/40
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