Question

If l:m = 1 1/2 : 1 /4 and m: n = 2 1/3 : 4 1/5 find (i) l:m and (ii) l:m:n Please explain in detail ​

Answer 1

Step-by-step explanation:

l:m = $\frac{11}{2} :\frac{1}{4}$

m:n = $\frac{21}{3} :\frac{41}{5}$

(i) l:m = $\frac{11}{2} /\frac{1}{4} = \frac{11}{2} * 4$ = 11 * 2 = 22

Answer = 22

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(ii) l:m:n =

        l                           m                       n

=    11/2          :             1/4

                             =    21/3          :         41/5

( = To make l:m and m:n in same ratio multiply 1/4 to 21/3 and 1/5 and then multiply 21/3 to 11/2)

ANSWER = 231/6 : 21/12 : 41/20

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