Tolong donk kerjain no 14 sama 15 ya!!

14) 16 4/6 – 8 3/15
= 100/6 – 123/15
=500/30 – 246/30
= 254/30 = 127/15
15) 12 7/9 – 4 3/12
= 115/9 – 51/12
= 460/36 – 153/36
= 307/36

No 11) 10 1/2-6 3/7=21/2-45/7
=147/14-90/14
=57/14
No 15) 12 7/9-4 3/12
=108/9-51/12
=432/36-153/36
=279/36
Maaf kalo salah ya…..