Question

what should be added to -7 upon 20 to get -2 upon 5​

Answer 1

Answer:

-1/20

Step-by-step explanation-

First to make it easy you convert -2/5 to denominator 20

= -8/20

so x+ -7/20= -8/20 *(let the fraction to be added is x)

x= -8/20+7/20

x= -1/20

so answer= -1/20

Answer 2

let the missing no be x

according to the question

-7/20 + x = -2/5

x= -2/5 +7/20

x= -8 +7 /20

x= -1/ 20

hence the missing no is -1/20