👤

11pe30+16pe60+2pe15+90pe100

Răspuns :

11/30+16/60
+2/15+9/100=numitorul comun este 1800 se amlifica
660+480+240+1620/1800
3180/1800
11/30
16/60=4x4/15x4=4/15
2/15
90/100=9/10
numitorul e 30 
11/30+8/30+4/30+27/30=50/30=5/3