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Question:
to expres 3/5 as rational number with numerator. (1) 21. (2) 159
Answer:

Given rational number = 3/5

1. Now numerator should be 21. So we multiply 7 in numerator and denominator, we get

3/5 = (3*7)/(5*7) = 21/35    

2. Now numerator should be 159. So we multiply 53 in numerator and denominator, we get

3/5 = (3*53)/(5*53) = 159/265    

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