tolong besok di kumpulkan

a.
1 3/8 + 5/12 - 0,2
=11/8 + 5/12 - 2/10
=165/120 + 50/120 - 24/120
=191/120

b.
0,5 + 3/10 × 0,3
=5/10 + 3/10 × 3/10
=5/10 + 9/100
=50/100 + 9/100
=59/100

c.
15% × 2,5 - 3/10 : 0,5
=15/100 × 25/10 - 3/10 : 5/10
=3/20 × 5/2 - 3/10 : 1/2
=15/40 - 3/10 × 2/1
=3/8 - 6/10
=15/40 - 24/40
=-9/40

d.
3 1/4 × 2/5 : 0,6
=13/4 × 2/5 : 6/10
=26/20 × 10/6
=260/120
=13/6

e.
50% + 7,5 × 1/25 - 1 1/4
=50/100 + 75/10 × 1/25 - 5/4
=50/100 + 15/2 × 1/25 - 5/4
=50/100 + 15/50 - 5/4
=50/100 + 30/100 - 125/100
=25/100
=1/4

Semoga bisa membantu...