Question

a:b=3:4,b:c=8:9,a:c=?

Answer 1

a:b=3:4
b:c=8:9
a:c=?
a/b×b/c=3/4×8/9=2/3
a:c=2:3

Answer 2

HERE IS YOUR ANSWER..⬇⬇

$Given , \\ \\ a : b \: = 3 : 4 \\ \\ b : c \: = 8 :9 \\ \\ \: To \: find : \: a : c \: = ? \\ \\ Now , \\ \\ a: b \: = 3: 4 \\ \\ = > \frac{a}{b} = \frac{3}{4} \: \: - - - - > (1) \\ \\ b : c \: = 8 : 9 \\ \\ = > \frac{b}{c} = \frac{8}{9 } \: \: - - - - > (2) \\ \\ \\ (1) \times (2) = > \frac{a}{b} \times \frac{b}{c} = \frac{3}{4} \times \frac{8}{9} \\ \\ = > \frac{a}{c} = \frac{2}{3} \\ \\ = > a : c = 2: 3$

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