jawab ya pakai cara 12-14 yang jawab bakal di follback

semoga membantu yach

12.) 2 3/6 - 1 2/4= 15/6 - 6/4= 60/24 - 36/24= 24/24= 1 C

13.) 1/4+2/3-3/8= 6/24+16/24-9/24= 22/24-9/24= 13/24 D

14.) 7/9-7/12= 28/36-21/36= 7/36 D