1. 2,5 : 1/4 - 1 1/5 ✖ 20 % 2. 3 5/6 ✖ 0,4 - 1 1/8 : 3/4 Bantu dongg dengan caranya y

1.
2,5 × 4 - 11/5 × 20/100 = 10 - 0,44 = 9,56

2.
23/6 × 4/10 - 11/8 × 4/3 = 1,53 - 1,83 = -0,3

1. 2,5 : 1/4 - 11/5 × 20/100
= 25/10 × 4/1 - 11/5 × 20/100
= 5 × 2/1 - 11 × 4/100
= 10/1 - 44/10
= 10 - 4/10
= -36/10
= -18/5
= 2 -8/5