1.2 5/6+3 17/20= 2.4 12/15+9 15/20= 3.9 9/12+2 15/18= Siapa cepat dapat 10 poin dan pakai cara ya makasih

1. 2 5/6 + 3 17/20

(6×2+5)/6 + (20×3+17)/20

17/6 + 77/20

17×20/6×20 + 77×6/20×6

340/120 + 462/120

802÷2/120÷2

401/60

6 41/60


2. 4 12/15 + 9 15/20

(15×4+12)/15 + (20×9+15)/20

72/15 + 195/20

72×20/15×20 + 195×15/20×15

1.440/300 + 2.925/200

4.365÷15/300÷15

291/20

10 91/20


3. 9 9/12 + 2 15/18

(12×9+9)/12 + (18×2+15)/18

117/12 + 51/18

117×18/12×18 + 51×12/18×12

2.106/216 + 612/216

2.718÷9/216÷9

302÷2/24÷2

151/12

12 7/12