Question

Exercitiul 10 va rog mult sa-l rezolvati

Answer 1

a. 2/9 + 6/9= 8/9
    1/9 + 7/9= 8/9
    5/9 + 3/9=8/9

b. 4/7 + 2/7= 6/7
    1/7 + 5/7= 6/7
     3/7 + 3/7= 6/7

c. 1/8 +4/8= 5/8
     2/8 + 3/8= 5/8
    4/8 + 1/8= 5/8
d. 3/10 + 4/10= 7/10
     2/10 + 5/10=7/10
    1/10 + 6/10= 7/10

Answer 2

Ex. 10:


8/9= 2/9+6/9             8/9= 3/9+5/9            8/9= 4/9+4/9

6/7= 4/7+2/7            6/7= 5/7+1/7              6/7= 3/7+3/7

5/8= 1/8+4/8            5/8= 2/8+3/8              5/8= 3/8+2/8

7/10= 3/10+4/10     7/10= 6/10+1/10        7/10= 5/10 + 2/10