Jika a=2per3 b=1per2 c=3per4. Hitunglah nilai dari (1setengah a tambah 0.25b)÷3 per5 c

a = 2/3
b = 1/2
c = 3/4

= (1,5a + 0,25b) ÷ 3/5c
= (15/10 × 2/3 + 25/100 × 1/2) ÷ 3/5 × 3/4
= (200/200 + 25/200) ÷ 9/20
= 225/200 × 20/9
= 4500/1800
= 45/18
= 15/6
= 2 1/2
= 2,5