Question

3sobre10+20sobre100+2sobre1000

Answer 1

3/10 + 20/100+2/1000=
3/10+ 20/100+ 2/1000= mmc de 10,100,e 1000= 1000
 1000:10x3/1000+ 1000:100x20/1000+ 1000:1000.1=
300/1000+ 200/1000+ 2/1000=
    $\frac{300+200+2}{1000} = \frac{502}{1000} =0,502$