Question

РЕШИТЕ УДОБНЫМ СПОСОБОМ 2 2/7 * 3 8/15 + 1 7/15 * 2 2/7 - 7 2/7 * 5 = ...

Answer 1

2 1/7*3 8/15+1 7/15*2 2/7-7 2/7*5=
2 2/7*3 8/15=848/105=8 8/105
1 7/15*2 2/7=352/105=3 37/105
7 2/7*5=255/7=36 3/7
8 8/105+3 37/105=11 3/7
11 3/7-36 3/7=-25