50% . 4/3 . 10 . 7/35 . 0,75 (7/8 – 3/4) . 4/3 – 2/7 . (3,5)^2

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1. `a) 50%. 4/3. 10. 7/35. 0,75`

   `= 1/2. 4/3. 10. 1/5. 3/4`

   `= (1/2. 10. 1/5). (4/3. 3/4)`

   `= (5. 1/5). 1`
   `= 1. 1`
   

   `= 1`

   `b) (7/8 – 3/4) . 4/3 – 2/7 . (3,5)^2`

   `= 1/8. 4/3 – 2/7. 49/4`

   `= 1/6 – 7/2`

   `= -10/3`

    

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2. Đáp án + Giải thích các bước giải:

   `50% . 4/3 . 10 . 7/35 . 0,75`

   `=1/2. 4/3. 10. 7/35. 3/4`

   `=(10. 1/2. 7/35).(4/3. 3/4)`

   `=(5. 7/35).1`

   `=1.1`

   `=1`

   `________________________________`

   `(7/8 – 3/4) . 4/3 – 2/7 . (3,5)^2`
   

   `=(7/8 – 6/8) . 4/3 – 2/7 . (7/2)^2`
   

   `=1/8 . 4/3 – 2/7 . 49/4`
   

   `=1/6-7/2`
   

   `=1/6-21/6`
   

   `=(-10)/3`

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