Question

Calculeaza:
a) 1/3+1/7;
b) 2/3+3/7+4/21;
c) 4/5+1+2/6.
Repede va rog​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

1/3 + 1/7 = 7/21 + 3/21 = 10/21

b)

2/3 + 3/7 + 4/21 = 14/21 + 9/21 + 4/21 = 27/21 = 9/7

c)

4/5 + 1 + 2/6 = 4/5 + 1 + 1/3 = 12/15 + 15/15 + 5/15 = 32/15