Đặt thừa số chung 3/5:(-1.1/15-1/6)+3/5:(-1/3-1.1/a5)
Giải thích
35:−1115−16+35:−13−1115=35:−1615−16+35:−13−1615=35:−3730+35:-75=35.−3037+35.-57=35.-3037+-57=35.-395259=−237259
35:−1115−16+35:−13−1115=35:−1615−16+35:−13−1615=35:−3730+35:-75=35.−3037+35.-57=35.-3037+-57=35.-395259=−237259