Question

71/3 + 31/3; 53/6 + 21/6; 43/7 – 12/7; 10/33 – 1/33.

Answer 1

71/3+31/3=102/3=34.
53/6+21/6=74/6=12 2/6= 12 1/3.
43/7-12/7=31/7=4 3/7.
10/33-1/33=9/33=3/11.

Answer 2

а) 13/3+14/5=65/15+42/15=107/15=7 2/15.

Answer 3

б) 17/3+13/24=136/24+13/24=149/24=6 5/24.

Answer 4

в)71/6-2/11=781/66-12/66=769/66=11 43/66.