Question

Escolha as operações entre as frações decimais transforme-as em Frações equivalentes do mesmo denominador
1)7/8+6/4+5/2
2)25/10+2/5+15/20
3)2/10+5/5+21/00
4)7/10+2/5+1/2
5)2/8+5/4+6/2

Answer 1

1- 7/8+6/4+5/2. MMC=8
7+12+20/8
39/8

2- 25/10+2/5+15/20. MMC=20
50+8+15/20
73/20

3- 2/10+5/5+ 21/0
2/10+1/1+0. MMC=10
2+10/10
12/10

4- 7/10+2/5+1/2. MMC=10
7+4+5/10
16/10

5- 2/8+5/4+6/2. MMC=8
2+10+24/8
38/8
19/4