Question

Quanto é 1/2 + 7/10 + 13/10 + 8/5 + 9 sobre

Answer 1

= 1/2 + 7/10 + 13/10 + 8/5 + 9
= 1/2 + 20/10 + 8/5 + 9
= 1/2 + 2 + 9 + 8/5
= 1/2 + 11 + 8/5
= 0,5 + 11 + 1,6
= 2,1 + 11,0
= 13,1
= 131/10