Respuesta :

(2/1 - 3/5) / -4/7
Solving the numerator first ..
(2/1)×5 - 3/5
= 10/5 - 3/5 = 7/5
Coming back to the whole question ,
7/5 / -4/7
= 7×7 / 5×(-4)
= 49 / -20
= -2.45
.
Hope it helps!

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