Question

what number shoild be added to -2/3bto get -1/7 plz in detail

Answer 1

Let the no. be X.

- 2/3 + X = - 1 / 7

X = - 1 / 7 + 2 / 3

X = 11 / 21

Answer 2

Let no.be x
-2/3+x=-1/7
x=-1/7+2/3
x=11/21