A= -3/4 + -1/5 + -2/3 B= -25/13 + -9/17 + 12/13 + -25/17 Giúp mk với huhu 30/06/2021 Bởi Kylie A= -3/4 + -1/5 + -2/3 B= -25/13 + -9/17 + 12/13 + -25/17 Giúp mk với huhu
`A= -3/4 + {-1}/5 + {-2}/3` `-> A = {-45}/60 – 12/60 – 40/60` `-> A = -97/60` $\\$ `B = -25/13 + {-9}/17 +12/13 + {-25}/17` `-> B = (-25/13 +12/13) + (-9/17 -25/17)` `-> B = -1 -2` `-> B =-3` Bình luận
`A = -3/4 + \frac{-1}{5} + \frac{-2}{3}` `=-45/60 – 12/60 – 40/60` `= \frac{-45-12-40}{60}` `= -97/60` ——————————————– `B = -25/13 + \frac{-9}{17} + 12/13 + \frac{-25}{17}` `= ( -25/13 + 12/13) + (\frac{-9}{17} +\frac{-25}{17})` `= -1 + -2` `= -3` Bình luận
`A= -3/4 + {-1}/5 + {-2}/3`
`-> A = {-45}/60 – 12/60 – 40/60`
`-> A = -97/60`
$\\$
`B = -25/13 + {-9}/17 +12/13 + {-25}/17`
`-> B = (-25/13 +12/13) + (-9/17 -25/17)`
`-> B = -1 -2`
`-> B =-3`
`A = -3/4 + \frac{-1}{5} + \frac{-2}{3}`
`=-45/60 – 12/60 – 40/60`
`= \frac{-45-12-40}{60}`
`= -97/60`
——————————————–
`B = -25/13 + \frac{-9}{17} + 12/13 + \frac{-25}{17}`
`= ( -25/13 + 12/13) + (\frac{-9}{17} +\frac{-25}{17})`
`= -1 + -2`
`= -3`