mohon pakai cara ya teman yang baik

5/8 + 3/12 : 6/9 = 5/8 + (3/12 : 6/9) = 5/8 + (3/12 x 9/6) = 5/8 + 27/72 = 45/72 + 27/72 = 82/72 = 1 10/72 = 1 5/36

0,15 + 2 1/10 = 15/100 + 21/10 = 15/100 + 210/100 = 225/100 = 2 25/100 = 2 1/4

3 1/2 + 1/4 = 7/2 + 1/4 = 14/4 + 1/4 = 15/4 = 3 3/4

9 15/8 - 3/4 = 87/8 - 3/4 = 87/8 - 6/8 = 81/8 = 10 1/8

4 1/3 = 13/3 = 429/99 ≈ 430/100 ≈ 4,3 (dibulatkan)

3/5 : 3% = 3/5 : 3/100 = 3/5 x 100/3 = 300/15 = 20

s = 5cm : 250km = 5 : 25.000.000 = 1 : 5.000.000

4/9 x (113F - 32) = 4/9 x 81 = 324/9 = 36R

5,25 + 1,4 = 5,25 + 1,40 = 6,65