Question

If a:b = 5:7 and b:c = 14:15, find a:c

Answer 1

Answer:

2:3

Explanation:

a:b=5:7 b:c=14:15

a/b=5/7 b/c=14/15

a=5/7b c=14/15b

a/c=5/7b/15/14b

=5/7×14/15

=2/3

a:c=2:3