Question

Respode rapido pfv marco mr

Answer 1

Explicação passo-a-passo:

2,8=28/10=14/5

1,02=102/100=51/50

0,005=5/1000=1/200

+2,8-1,02-0,005=

14/5-51/50-1/200=

40.14/200-4.51/200-1/200=

560/200-204/200-1/200=

356/200-1/200=

355/200=

71/40