tính a) 47/4 – (41/6 – 9/2) + 5/3 b) 47/4 – (41/6 – 9/2 + 5/3 ) c) (91/2 – 19/8) – (35/6 + 27/4) + (32/3 – 45/8)

0 bình luận về “tính a) 47/4 – (41/6 – 9/2) + 5/3 b) 47/4 – (41/6 – 9/2 + 5/3 ) c) (91/2 – 19/8) – (35/6 + 27/4) + (32/3 – 45/8)”

1. a)47/4-(41/6-9/2)+5/3

   =47/4-(41/6-27/6)+5/3

   =47/4-14/6+5/3

   =141/12-28/12+5/3

   =113/12+5/3

   =113/12+20/12

   =133/12

   b)47/4-(41/6-9/2+5/3)

   =47/4-(41/6-27/6+10/6)

   =47/4-(14/6+10/6)

   =47/4-24/6

   =113/12+48/12

   =161/12

   c)(91/2-19/8)-(35/6+27/4)+(32/3-45/8)

   =(364/8-19/8)-(70/12+81/12)+(256/24-135/24)

   =345/8-151/12+121/28

   =1023/24-302/24-121/28

   =721/24-121/28

   =20188/672-2904/672

   =17284/672

   =4321/168

   xin  vote 5 sao+câu trả lời hay nhất+cảm ơn

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2. `a)47/4-(41/6-9/2)+5/3 `

   `=47/4-14/6+5/3`

   ` =(141-28+20)/12`

   `=133/12`

   ` b)47/4-(41/6-9/2+5/3)`

   `=47/4-(41-27+10)/6`

   `=47/4-4`

   `=47/4-16/4`

   `=31/4`

   `c)(91/2-19/8)-(35/6+27/4)+(32/3-45/8)`

   `=91/2-19/8-35/6-27/4+32/3-45/8`

   `=(91/2-35/6-27/4+32/3)+(-19/8-45/8)`

   `=(546-70-81+128)/12-8`

   `=(523)/12-8`

   `=(523-96)/12`

   `=427/12`

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