a) 5/2 + 2 5/6 : 3/4 =......hasilnya dijadikan pecahan biasa b) 8,25 - 1 1/2 + 45% =........hasilnya bebas c) 15% dari 50 kuintal =........ d) 1 3/5 dari 2 jam

a. 5/2 + 17/6 : 3/4 = 5/2 + ( 17/6 x 4/3 )
= 5/2 + 68/18
= 45/18 + 68/18
= 113/18
b. 8,25 = 8 1/4 = 33/4
= 33/4 - 11/2 + 45/100
= 33/4 - 11/2 + 9/20
= 165/20 - 110/20 + 9/20
= 64/20 = 32/10 = 16/5 = 3,2
c. 50 kuintal = 50 x 100 kg = 5000 kg
=15/100x 5000
= 750 kg
d. 2 jam = 60 x 2 = 120 menjt
= 1 3/5 = 8/5
= 120 : 8/5
= 120 x 5/8
= 75 menit

A.
5/2 + (17/6 × 4/3)
= 5/2 + 34/9
= 45/18 + 68/18
= 113/18

B.
825/100 - 150/100 + 45/100
= 675/100 + 45/100
= 720 / 100

C.
15/100 × 50
= 7,5 kuintal

D.
8/5 × 120 menit
= 192 menit
= 3 jam 12 menit