Respuesta :

-1/2 + 3/4 = 3/4 - 2/4
your answer is 1/4
-1/2 + 3/4

Multiply all of the first fraction by 2/2 so that both of the denominators are 4.

-1/2 × 2/2 = -2/4

NEW PROBLEM :  -2/4 + 3/4 = 1/4

:-)
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