jangan lupa pake sifat distributif ya, sekaligus pake penjelasanya (biar ak ngerti)

a) 3/5 x 3 1/2 + 3/5 x 11 1/2
= 3/5 ( 3 1/2 + 11 1/2)
= 3/5 ( 15)
= 9
b) 7 2/3 x 3 3/4 - 3/5 x 3 3/4
= 3 3/4 ( 7 2/3 - 3/5)
= 15/4 ( 23/3 - 3/5)
= 15/4 ( 115/15 - 9/15)
= 15/4 .106/15
= 106/4
= 53/4
= 13 1/4
c) 7 1/3 x 12 5/11 - 9 8/11 x 7 1/3
7 1/3 ( 12 5/11 - 9 8/11 )
7 1/3 ( 2 8/11)
22/3. 30/11
= 20.