2 1/3 + 3/4 + 1/2 + 2/5 =

2 1/3 + 3/4 + 1/2 + 2/5

= 7/3 + 3/4 + 1/2 + 2/5

=140/60 + 45/60 +30/60 +24/60

=239/60 =3 59/ 60

Jawab:

2 1/3 + 3/4 + 1/2 + 2/5 =

= 7/3 + 3/4 + 1/2 + 2/5

= 7(20)/3(20) + 3(15)/4(15) + 1(30)/2(30) + 2(12)/5(12)

= 140/60 + 45/60 + 30/60 + 24/60

=  239/60

= 3,983

thanks