If l:m= 3/2:7/4 and m:n=7/3:21/5
Find l:n. Also find l:m:n.
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Step-by-step explanation:
l : m = 12 : 14 = 6 : 7
m : n = 35 : 63 = 5 : 9
(l/m)/(n/m) = (6/7)/(9/5) = 10/21
l : n = 10 : 21
l : m : n
= l : 7l/6 : 21l/10
= 1 : 7/6 : 21/10
= 30 : 35 : 63
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