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

Toán Lớp 6: 2.3/7+(2/9-1 3/7)-5/3:1/9 (1/2)mũ 5:3 1/8-75%(-5 1/9) Mình viết hơi khó hiểu 1 tí mọi người thông cảm

Toán Lớp 6: 2.3/7+(2/9-1 3/7)-5/3:1/9
(1/2)mũ 5:3 1/8-75%(-5 1/9)
Mình viết hơi khó hiểu 1 tí mọi người thông cảm

Comments ( 2 )

  1. a) 2 . 3/7 + ( 2/9 – 1 3/7) – 5/3 : 1/9
    = 6/7 + ( 2/9 – 10/7)- 5/3 . 9
    = 6/7 + (14/63 – 90/63) – 15
    = 6/7 + (-76/63) – 15
    = 54/63 + (-76/63) – 15
    =-22/63 -15
    =-967/63
    b) (1/2)^5 : 3 1/8 – 75% ( – 5 1/9)
    = 1/32 : 25/8- 3/4 . (-46/9)
    = 1/32 . 8/25 – (-23/6)
    = 1/100 + 23/6
    = 1153/300
     

  2.    2.$\frac{3}{7}$ + ( $\frac{2}{9}$ – 1 + $\frac{3}{7}$ ) – $\frac{5}{3}$ : $\frac{1}{9}$
    = $\frac{6}{7}$ + ( $\frac{2}{9}$ – $\frac{4}{7}$ ) – $\frac{5}{3}$ . 9
    = $\frac{6}{7}$ – $\frac{22}{63}$ – 15
    = $\frac{32}{63}$ – 15
    = $\frac{-913}{63}$
       
      (1/2)^5 : ( 3 + $\frac{1}{8}$ ) – 75%( -5$\frac{1}{9}$ )
    = $\frac{1}{32}$ : $\frac{25}{8}$ – $\frac{3}{4}$( $\frac{-46}{9}$ ) 
    = $\frac{1}{100}$ – $\frac{-23}{6}$
    = $\frac{1153}{300}$

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