express 2/5 as a rational number with numerator (i) -56 (ii) 500 (iii)-7000

1) Given fraction is 2/5

if numerator is -56

-56/2 = -28 that is numerator is multiple by -28 and we must multiply by -28 in to denominator.

( 2 * -28)/ (5 * -28 ) = -56/-140 

2) 

if numerator is 500

500/2 = 250 that is numerator is multiple by 250 and we must multiply by 250 in to denominator.

( 2 * 250)/ (5 * 250 ) = 500/1250 

3) 

if numerator is -7000

-7000/2 = -3500 that is numerator is multiple by -3500 and we must multiply by -3500 in to denominator.

( 2 * -3500)/ (5 * -3500) = -7000/-17500 

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