Question

what should be subtracted from 8/13 to get -31/13 ?​

Answer 1

-38/13

Hope it will help you........

Answer 2

Answer:

What number should be subtracted from 7/-8 to get -13/12?

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5/24. You can answer this most efficiently by composing a simple linear equation.

-7/8 - x = -13/12

Add (-7/8) to each side and then multiply both sides by -1 (to clear the negative sign on x) and you get:

x = 5/24.

You can check this by computing (-7/8) - (5/24). When adding/subtracting fractions, the denominators must be equal. Multiply (-7/8) by (3/3) to get (-21/24). Subtract (5/24) and you are left with (-26/24), which can be simplified to -13/12.