Question

Prosze o pomoc na dzis
6 2/3×2 2/5-9 7/8=
[1 2/3×2 1/4-(1 1/3) do potegi 2]÷71=

Answer 1

6 2/3×2 2/5-9 7/8=14/3*12/5-9 7/8=168/15-9 7/8=11 3/15-9 7/8=
11 24/120-9 105/120=1 39/120


[1 2/3×2 1/4-(1 1/3) ²]÷71=
[5/3*9/4-(16/9]:71=
[45/12-16/9]:71=
[135/36-64/36]:71=
71/36*1/71=1/36