Question

what should be subtracted from 7 upon -8 to get -13 upon 12​

Answer 1

Answer:

5/24. (or) 5 upon 24

Step-by-step explanation:

Let us take the value to be subtracted from 7/(-8)

as = x

Now,

we know all numbers are rational i.e., negative sign ( - ) in denominator can be written on numerator,

a / -b = -a / b

hence,

7 / -8 = -7 / 8

Now we start solving ,

So,

=> (-7 / 8) - x = -13 / 12

(shift x on right side and -13 / 12 on left side)

=> ( -7 / 8) + 13 / 12 = x

=> -21 + 26 / 24 = x

(we took L.C.M of 8 and 12)

=> x = 5 / 24

You can verify it also by substituting x value in the given question and prove L.H.S = R.H.S

thank you.