Respuesta :

gwendoline05

Answer:

1. 7/10 + 10/100

= 7/10 + 1/10

= 7+1/10

= 8/10

= 4/5

2. 50/100 + 4/10

= 1/2 + 4/10

= 5/10 + 4/10

= 5+4/10

= 9/10

3. 9/10 + 10

= 9/10 + 100/10

= 9+100/10

= 109/10

4. 1/10 + 40/100

= 1/10 + 4/10

= 1+4/10

= 5/10

= 1/2

5. 70/100 + 2/10

= 7/10 + 2/10

= 7+2/10

= 9/10