tolong di jawab ya pakai cara mudah 1-10

9. 10 3/7 + 2/6 = 10 dihilangkan dulu = 3/7 + 2/6 = 18/42 + 14/42 = 32/42 = 16/21 = 10+ 16/21 = 10 16/21

10. 1/12 + 11 7/20 = 11 dihilangkan dulu = 1/12 + 7/20 = 20/240 + 84/240 = 104/240 = 52/120 = 26/60= 13/30 = 11+ 13/30 = 11 13/30