Question

-7×(1/4-3/15)por favor me ajudem a fazer esta conta

Answer 1

-7×(1/4 - 3/15)
=-7×(1•15/4•15 - 3•4/15•4)
=-7×(15/60 - 12/60)
=-7×(15-12)/60
=-7×3/60
=-7/20