Question

what rational number should be subtracted crom -23/5 to get -7/2​

Answer 1

let x be subtracted from-23/5 to get -7/2.

=-23/5-x=-7/2

-x=-7/2+23/5

-x=-35+46/10

-x=11/10

Therefore,

x=-11/10

Answer 2

=-23/5-(-7/2)

=-23/5+7/2

=(-46+35)/10

=-11/10

Hope it will help you