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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 7: bài 9 : A=(3 – 1/4 + 2/3 ) – ( 5 -1/3 – 6/5 ) – ( 6 – 7/4 + 3/2 ) bài 10 : A = ( 6 – 2/3 + 1/2 ) – ( 5 +5/3 – 3/2 ) – ( 3 – 7/3 + 5/2 )

Home/ Toán Lớp 7: bài 9 : A=(3 – 1/4 + 2/3 ) – ( 5 -1/3 – 6/5 ) – ( 6 – 7/4 + 3/2 ) bài 10 : A = ( 6 – 2/3 + 1/2 ) – ( 5 +5/3 – 3/2 ) – ( 3 – 7/3 + 5/2 )

Toán Lớp 7: bài 9 : A=(3 – 1/4 + 2/3 ) – ( 5 -1/3 – 6/5 ) – ( 6 – 7/4 + 3/2 ) bài 10 : A = ( 6 – 2/3 + 1/2 ) – ( 5 +5/3 – 3/2 ) – ( 3 – 7/3 + 5/2 )

Tháng Mười Một 4, 2022 Toán học 2 Comments 0 views

Toán Lớp 7: bài 9 : A=(3 – 1/4 + 2/3 ) – ( 5 -1/3 – 6/5 ) – ( 6 – 7/4 + 3/2 )
bài 10 : A = ( 6 – 2/3 + 1/2 ) – ( 5 +5/3 – 3/2 ) – ( 3 – 7/3 + 5/2 )

Comments ( 2 )

  1. diepbich93
    diepbich93
    4 Tháng Mười Một, 2022 at 2:12 chiều
    Reply
    @jay
    9.A=( $3$ – $\frac{1}{4}$ + $\frac{2}{3}$ ) – ( $5$ – $\frac{1}{3}$ – $\frac{6}{5}$ ) – ( $6$ – $\frac{7}{4}$ + $\frac{3}{2}$ )
    A= $\frac{41}{12}$  – $\frac{52}{15}$ – $\frac{23}{4}$ 
    A= – $\frac{1}{20}$ – $\frac{23}{4}$ 
    A= – – $\frac{29}{5}$ 
    10. A=( $\frac{6}{2}$ – $\frac{2}{3}$ + $\frac{1}{2}$ ) – ( 5 + $\frac{5}{3}$ – $\frac{3}{2}$ ) – ( 3 – $\frac{7}{3}$ + $\frac{5}{2}$ )
    A=  ( 6 -5 – 3) + ( – $\frac{2}{3}$ – $\frac{5}{3}$- $\frac{7}{3}$) + ( $\frac{1}{2}$ + $\frac{3}{2}$ – $\frac{5}{2}$ )
    A= -2 + 0 – $\frac{1}{2}$ 
    A= – $\frac{5}{2}$ 
     

  2. quynhthanhnhu
    quynhthanhnhu
    4 Tháng Mười Một, 2022 at 2:12 chiều
    Reply
    Giải đáp:
    bài 9 :
    A=(3 – 1/4 + 2/3 ) – ( 5 -1/3 – 6/5 ) – ( 6 – 7/4 + 3/2 )
    A= 3 – 1/4 + 2/3 – 5 + 1/3 + 6/5 – 6 + 7/4 – 3/2
    A= -29/5
    bài 10 :
    A = ( 6 – 2/3 + 1/2 ) – ( 5 +5/3 – 3/2 ) – ( 3 – 7/3 + 5/2 )
    A=6 – 2/3 + 1/2  – 5 -5/3 +3/2 –  3 + 7/3 – 5/2
    A= (6 – 5 – 3) + (-2/3 – 5/3 + 7/3) + (1/2 + 3/2 – 5/2 )
    A=  -2 + 0 -1/2
    A= -5/2

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222-9+11+12:2*14+14 = ? ( )

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