Question

What should be added to the sum of 13/15 and 27/20 to get 91/60?
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Answer 1

Answer:

let x be that term

13/15+27/20+x=9/60

by making denominator same we get

52/60+81/60+x=9/60

133/60+x=9/60

x=9/60-133/60

= (9-133)/60

=-124/60

=-31/15