tolong di jawab no.3-4 sama caranya

cuma bisa no 4 doank
makasih!

Jawabannya adalah

No 3. 2 1/4 ÷ 1 1/2 - 2 1/8=
5/2 ÷ 3/2 - 17/8=
5/2 × 2/3 - 17/8=
10/6 - 17/8= 80/48 - 102/48= -22/48= -11/24

No 4. 3 3/8 ÷ 2 1/4 + 2,5 × 20%=
27/8 ÷ 9/4 + 25/10 ÷ 20/100=
27/8 × 4/9 + 25/10 × 100/ 20=
3/2 + 2/4= 6/4 + 2/4 = 8/4 = 4/2= 2

Semoga membantu y.