Cien ma poate ajuta la ex 10 e, f, g, h, i, j, k

Răspuns:
Explicație pas cu pas:
1/3+5/6+3/4+7/24=(8+20+18+7)/24=53/24
1/2+1/3+5/6=(3+2+5)/6=10/6=5/3
2/5+7/3=(6+35)/15=41/15
5/6+1/5=(25+6)/30=31/30
1/3+2/5=(5+6) /15=11/15
7/4+1/2=9 /4