Respuesta :

PSN03

yo sup??

so

1/8+2/5=5+16/40=21/40=1/2 (approx)

13/14-1/10=130-14/140=116/140=0 (approx)

1/12+1/20=5+3/60=8/60=0.133=0 (approx)

I hope its correct...fingers crossed.

Hope this helps.