1)23/24 - 7/12 = 23/24 - 7*2/12*2 = 23/24- 14/24= 9/24
2)23/24 - 5/18 = 23*3/24*3 - 5*4/18*4 = 69/72- 20/72= 49/72
1)23/24 - 7/12 = 23/24 - 7*2/12*2 = 23/24- 14/24= 9/24
2)23/24 - 5/18 = 23*3/24*3 - 5*4/18*4 = 69/72- 20/72= 49/72