Question

If A : B = 7 : 5 and B : C = 9 : 14, find A : C.If A : B = 7 : 5 and B : C = 9 : 14, find A : C.​

Answer 1

Answer:

A:B=7:5 AND B:C=9:14

So take out the LCM of the B=45

So make B into 45=》

A:B=(7×9):(5×9) AND B:C=(9×5):(14×5)

A:B=63:45 and B:C=45:70

So;A:C=63:70

Making it in simplest form the answer would be

A:C=9:10

Answer 2

Step-by-step explanation:

A:B = 7:5 = 7×9 : 5×9 = 63:45

B:C = 9:14 = 9×5:14×5 = 45:70

A:B = 63 : 45

B:C = 45:70

A:B:C = 63:45:70

A:C = 63:70 = 9:10