tolong C sama D pakai cara!

C. 4 2/5- 1 1/3 + 3/4 =

22/5 - 4/3 + 3/4 = 284/60 - 80/60 + 45/60 = 249/60 = 83/20 = 4 3/20.

semoga membantu :):)

c.
4 2/5 - 1 1/3 + 3/4
= 4 24/60 - 1 20/60 + 45/60
= 3 4/60 + 45/60
= 3 49/60

d.
2,25 + 25% - 1 1/2
= 2,25 + 25/100 - 3/2
= 2,25 + 0,25 - 1,5
= 2,5 - 1,5
= 1