Tolong dijawab dengan Cara Dan Tolong disederhanakan

0,05×2 1/2=500/1000×5/2=2,500/500=4 500/500=1

a) 2/5 x 0,6
= 2/5 x 6/10
= 12/50
= 6/25

b) 0,05 x 2 1/2
= 5/100 x 5/2
= 5/100 x 250/100
= 255/100
= 2 55/100
= 2 11/20

c) 6,8 x 3 1/4
= 68/10 x 13/4
= 272/40 x 130/40
= 402/40
= 10 2/40 = 10 1/20

d) 0,8 : 1/5
= 8/10 x 5/1
= 40/10
= 4

e) 2 1/2 : 0,5
= 5/2 : 5/10
= 5/2 x 10/5
= 50/10
= 5

f) 12,1 : 2 1/5
= 121/10 : 11/5
= 121/10 x 5/11
= 605/ 110
= 5 55/110
= 5 11/22
= 5 1/2