Question

if l:m =4/2 : 7/4 and m:n = 7/3 : 21/5 find (I) l:n ,(ii) l: m:n
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Answer 1

Answer:

if l:m =4/2 : 7/4 and m:n = 7/3 : 21/5 find (I) l:n ,(ii) l: m:n