Question

what must be subtract from 2/5 to get 5/15?​

Answer 1

Answer:

1/15 should be subtracted from 2/5 to get 5/15

Answer 2

Answer:

let us assume we subtract x from 2/5 to get answer 5/15

in algebric form we may write it as

2/5 - x = 5/15

take x to RHS and 5/15 to LHS and change sign

2/5 - 5/15 = x      (to add / subtract fraction make denminator same by taking      

1/15 = x                                                                                                LCM)

this is the answer x = 1/15