tolong ya pake cara...

5) 1/3 x 1 1/2 + 2/7 : 10/3
    = ( 1/3 x 3/2 ) + ( 2/7 x 3/10 )
    = 1/2 + 3/35
    = 35/70 + 6/70
    = 41/70

6) 3 1/3 + 3/4
    = 3 4/12 + 9/12
    = 3 13/12
    = 4 1/12

7) 3/2 + 4/20 - 13/15
    = 90/60 + 12/60 - 52/60
    = 102/60 - 52/60
    = 50/60
    = 5/6