pakai cara dan jawab dengan benar dan jangan ngasal
![](https://id-static.z-dn.net/files/d93/2c39d73898ca9360de00e126313b0229.jpg)
- 4/5 - 2/3 = 12/15 - 10/15 = 2/15
- 2/3 - 4/5 = 10/15 - 12/15 = -2/15
- (4/5 - 2/3) - 1/7 = 2/15 - 1/7 = 14/105 - 15/105 = -1/15
- 4/5 - (2/3 - 1/7) = 4/5 - (11/21) = 84/105 - 55/105 = 29/105