Question

what no should be added to -5/7 to get -2/3
show full method​

Answer 1

Answer:

1/21

Step-by-step explanation:

let, k will be added to -5/7 to get -2/3

so,

-5/7 + k = -2/3

=> k = -2/3 + 5/7 = (-14 + 15)/21

=> k = 1/21

Hence, 1/21 should be added to -5/7 to get -3/3

Answer provided by Gauthmath.