5/16 . 24/15 + 2/4 . 4/3 – 7/6 25% – 4/12 + 5/9 – 16/18 12/15 – |- 4/24| + 8/60 – (-2020/2021)^0

0 bình luận về “5/16 . 24/15 + 2/4 . 4/3 – 7/6 25% – 4/12 + 5/9 – 16/18 12/15 – |- 4/24| + 8/60 – (-2020/2021)^0”

1. 5/16.24/15+2/4.4/3-7/6

   =(5/16.24/15)+(2/4.4/3)-7/6

   =1/2+2/3-7/6

   =7/6-7/6

   =0

   25% – 4/12 + 5/9 – 16/18

   =25/100-4/12+5/9-18/16

   =1/4-4/12+5/9-8/9

   =(1/4-4/12)+(5/9-8/9)

   =(-1/12)+(-1/3)

   =-5/12

   12/15-|-4/24|+8/60-(-2020/2021)^0

   =12/15-4/24+8/60-(-2020/2021)^0

   =(12/15-4/24)+(8/60-1)

   =19/30+(-13/15)

   =-7/30

   Chúc học tốt

    

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2. Đáp án:

   `5/16 . 24/15 + 2/4 . 4/3 – 7/6`

   `= 1/2 + 2/3 – 7/6`

   `= 3/6 + 4/6 – 7/6`

   `= 0`

   `25% – 4/12 + 5/9 – 16/18`

   `= 1/4 – 1/3 + 5/9 – 8/9`

   `= 1/4 – 1/3 -1/3`

   `= 1/4 – 2/3`

   `= 3/12 – 8/12`

   `= -5/12`

   `12/15 – |- 4/24| + 8/60 – (-2020/2021)^0`

   `= 12/15 – 4/24 + 8/60 – 1`

   `= 4/5 – 1/6 + 2/15 – 1`

   `= 24/30 – 5/30 + 4/15 – 30/30`

   `= -7/30`

    

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