Aduceti la forma cea mai simpla: (ex. 47)
Va rog ajutor!

Răspuns:
a) 42-3•4/6²
42-12/36
30/36=10/12=5/6
b)5²-1/6²+3
25-1/36+3
24/39=8/13
c)6²-3²/8²-1²
36-9/64-1
27/63=3/7
d)10²-6•11/10²-7²
100-66/100-49
34/51