resolva as frações 4/6+1/6= 3/9+2/3= 12/10-7/10= 7/8-1/2= 5/12...

4/6+1/6= 5/6

3/9+2/3= 9/9

12/10-7/10= 1/2

7/8-1/2= 3/8

5/12+8/12 =1 inteiro e 1/12

8/15+4/5= 1/3

2/4+1/5= 7/10

14/20-9/20= 1/4

2/3-2/7= 8/21

9/16+1/2= 1 inteiro e 1/16

8/25+14/25= 22/25

Explicação passo a passo:

Espero ter ajudado :)