hitunglah hasil operasi berikut. a.1 3/4:9/8×2/3 b.3%×25/30:1/3 c.5/6-2/3×2/4:1/3 d.2%+0,5-2/5

a. 7/4 : 9/8 x 2/3
= 7/4 : 18/24
= 7/4 x 24/18
= 7/4 x 4/3
= 7/3
= 2 1/3

b. 3/100 x 25/30 : 1/3
= 75/3000 : 1/3
= 75/1000
= 3/40

c. 5/6 - 2/3 x 2/4 : 1/3
= 5/6 - 1/3 : 1/3
= 5/6 - 1
= -1/6

d. 2/100 + 5/10 - 2/5
= 2/100 + 50/100 - 40/100
= 12/100
= 12%