Question

If sum of two rational number is -31/15.if one rational No. -7/5 . Find the othe

Answer 1

-31/15- (-7/5)=-31/15+7/5=(-31+21)/15=-10/15=-2/3

Answer 2

sum=-31/15
1 no.=-7/5
2no.=x
-7/5+x=-31/15
x=-31/15-(-7/5)
x=-31/15-(-21/15)
x=-31+21/15
x=-10/15