Question

efectuați a) 2/3 +(-7/5)-(-1/15) b) -1/7+(-3/14)-(-1/2) c) 5/8+(-1/2)+(-3/4) d) 1/6-(-1/4)+5/12-(+7/3) ​

Answer 1

Răspuns:

2/3+(-7/5)+1/15=10-21+1=-10

-1/7-3/14+1/2=-2-3+7=+2

5/8-1/2-3/4=5-4-6=-5

1/6+1/4+5/12-7/3=2+3+5-28=-18