Question

Ayuda!! necesito el procedimiento... Doy 30 puntos!!! ayudenme.

Answer 1

1 + {3/5 + [3/2 + 4/5] ÷ [3/8 ÷ 4/8] - 2}
= 1 + {3/5 + [23/10] ÷ [3/4] - 2}
= 1 + {3/5 + 46/15 - 2}
= 1 + 25/15
= 40/15
= 8/3

4 - {2/3 + [4/7 + 8] ÷ [2/9 ÷ 4/3] - 3/7 - 5}
= 4 - {2/3 + [60/7] ÷ [1/6] - 38/7}
= 4 - {14/21 + 360/7 - 38/7}
= 4 - {980/21}
= 4 - 140/3
= -128/3