tentukan: a, 12/7×(-3/5) b, 19/2+7/4 c, 1/4-3/8 d,3/8:5/2 bantiiin jawab jawab donk kakak

a. -36/35
b. 38/4+7/4 = 45/4 = 11 1/4
c. 2/8-3/8 = -1/8
d. 3/8 : 5/2 = 3/8 x 2/5 = 6/40 = 3/20

A. 12/7 × (-3/5)

12×-3/7×5

(-36/35)



B. 19/2 + 7/4

19×4/2×4 + 7×2/4×2

76/8 + 14/8

90÷2/8÷2

45/4


C. 1/4 - 3/8

1×8/4×8 - 3×4/8×4

8/32 - 12/32

-4÷4/32÷4

(-1/8)


D. 3/8 ÷ 5/2

3/8 × 2/5

3×2/8×5

6÷2/40÷2

3/20