👤

Efectuați:
a) 1/3-3/4+5/6
b)3/5-4/15+2/3
c)-1/2+7/3-5/6
d) 5/8-1/3+7/6
e)1/4-1/3+1/6
f)2/3+5/4-17/12
Vă rog! ​