Question

What number should be subtracted
i. from -5/2 to get -4
ii. from (1/2+1/3+1/5) to get 3 ?
​

Answer 1

Answer:

ans :1 . Let the no be x

-5/2 - x = -4

- x = -4 + 5/2

- x = ( -8 + 5 ) / 2

- x = -3 /2

x = 3/2

ans . 2. Let the no be x

( 1/2+ 1/3+ 1/5) -x = 3

( 15 + 10 + 6 )/ 30 - x = 3

31/30 - x = 3

- x = 3 - 31/30

- x = (90 - 31 ) / 30

- x = 59 / 30

x = - 59/30