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

Toán Lớp 7: 1$\frac{4}{23}$ + $\frac{5}{11}$ – $\frac{4}{23}$ + $\frac{6}{11}$ + 0,5

Toán Lớp 7: 1$\frac{4}{23}$ + $\frac{5}{11}$ – $\frac{4}{23}$ + $\frac{6}{11}$ + 0,5

Comments ( 2 )

  1. $\text{Giải đáp và giải thích các bước giải:}$
    $1\frac{4}{23}+\frac{5}{11}-\frac{4}{23}+\frac{6}{11}+0,5$
    $=\frac{27}{23}+\frac{5}{11}-\frac{4}{23}+\frac{6}{11}+0,5$
    $=(\frac{27}{23}-\frac{4}{23})+(\frac{5}{11}+\frac{6}{11})+0,5$
    $=\frac{23}{23}+\frac{11}{11}+0,5$
    $=1+1+0,5$
    $=2,5$

  2. $1\dfrac{4}{23}+\dfrac{5}{11}-\dfrac{4}{23}+\dfrac{6}{11}+0,5$
    $=\dfrac{27}{23}-\dfrac{4}{23}+\dfrac{5}{11}+\dfrac{6}{11}+0,5$
    $=\dfrac{23}{23}+\dfrac{11}{11}+0,5$
    $=1+1+0,5$
    $=2,5$

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