Question

If l:m=3/2:7/4 and m:n =7/3:21/5, find(¡)l:n;(¡¡)l:m:n.

Answer 1

here is your answer
please mark as brainlist answer...

Answer 2

l:m=3/2:7/4=(3×4)÷(2×7)=12:14=30:35
m:n=7/3:21/5=(7×5)/(3×21)=35:63
l:m:n=30:35:63
l:n=30:63