tolong kasih tau :) dari no 12-15

12. 2/9 ÷ 5/6 = 2/9 × 6/5 = 2 × 6 dan 9 × 5 = 12/45 = 4/15 ( b )
13. 237,12 ÷ 7,6 = 31,2 ( d )
14. 19/8 ÷ 5/3 = 19/8 × 3/5 = 19 × 3 dan 8 × 5 = 57/40 = 1 17/40 ( d )
15. 11/5 ÷ 20/100 ÷ 4/10 = 11/5 × 100/20 = 11 × 100 dan 5 × 20 = 1100/100
= 1100/100 = 11/1 × 10/4 = 11 × 10 dan 1 × 4 = 110/4 = 55/2 = 27 1/2 ( c )


Semoga Membantu

........................