tolong di jawab terima kasih

ni jwbannya, smga mmbantu ya
12 jwbnya 1/8
13 jwbnya 3 3/11
14 jwbnya 3/2

12. 5/12 - 7/24

5×24/12×24 - 7×12/24×12

120/288 - 84/288

36÷9/288÷9

4÷4/32÷4

1/8 (c)


13. 4 4/5 ÷ 1,2 × 9/11

24/5 ÷ 12/10 × 9/11

24/5 × 10/12 × 9/11

24×10×9/5×12×11

2.160÷10/660÷10

216÷6/66÷6

36/11

3 3/11 (a)


14. 150%

150÷10/100÷10

15÷5/10÷5

3/2 (d)