Question

dati factor comun 6:6+12:6+18:6+24:6+60:6= 11:11+22:11+33:11+44:11=

Answer 1

6(1:6+2:6+3:6+4:6+10:6)=6:6•(1+2+3+4+10)=6:6•20=20
11(1:11+2:11+3:11+4:11)=11:11•(1+2+3+4) =11:11•10=10.