Question

If A:B=5:6 and B:C=4:7,find A:B:C

Answer 1

A/B= 5/6
B/C=4/7
THE LCM OF NUMBER 4 AND 6 IS 12 SO,
A/B = 5×2/ 6×2=10/12
B/C = 4×3 / 7×3=12 / 21
SO A:B:C = 10:12:21 【Answer】
hope it helps, pls mark it brainliest.

Answer 2

$Given....\\A:B = 5:6\\A:B = \frac{5}{6}\times 4\\\\A:B =\ 20:24........(i)\\B:C = 4:7\\B:C =\frac{4}{7}\times 6\\\\B:C = 24:42........(ii)\\\\A:B:C =20:24:42\\\boxed{\boxed{A:B:C = 10:12:21}}$