Question

what should be added to 7 upon 12 to get minus 4 upon 15​

Answer 1

Step-by-step explanation:

let X be added to 7 upon 12 is equal to minus 4 upon 15.

=x+7/12=-4/15

=12x+7=-48/15

=12x =(-48-105)/15

=x=-153/180

so x=-17/20 is added to it.

Answer 2

Step-by-step explanation:

7/12 + x = -4/15

-4/15 - 7/12

LCM = 60

-16-35/60

-51/60

-51/60 ÷ 3 = -17/20