(2/7+3/14)*(7,5-13,5)-2 хелп ми плиз

Question

(2/7+3/14)*(7,5-13,5)-2 хелп ми плиз

Answer 1

2/7+3/14=7/14=1/2
7,5-13,5=-6
1/2*6=3
3-2=1
Ответ: 2/7+3/14)*(7,5-13,5)-2=1