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

Toán Lớp 5: Bài 1: >, <, =? 13/14 … 15/14 68/100 … 86/100 25/32… 50/64

Toán Lớp 5: Bài 1: >, <, =? 13/14 … 15/14 68/100 … 86/100 25/32… 50/64 90/90… 1 1 … 9/10 73/37 … 1 Bài 2: Rút gọn các phân số sau: 24/36 = ………………… 25/100 = 143/132 = ………………… 3535/3737 =

Comments ( 2 )

  1. Bài 1: $\frac{13}{14}$ < $\frac{15}{14}$ 
             $\frac{68}{100}$ < $\frac{86}{100}$ 
             $\frac{25}{32}$ = $\frac{50}{64}$ 
             $\frac{90}{90}$ = $1$
            $1$ > $\frac{9}{10}$ 
            $\frac{73}{37}$ > $1$
    Bài 2: $\frac{24}{36}=$$\frac{2}{3}$  (rút gọn cho 12)
              $\frac{25}{100}=$$\frac{1}{4}$  (rút gọn cho 25)
              $\frac{143}{132}=$$\frac{13}{12}$ (rút gọn cho 11)
              $\frac{3535}{3737}=$$\frac{35}{37}$  (rút gọn cho 101)

  2. 1.
    13/14 < 15/14
    68/100 < 86/100
    25/32 = 50/64
    90/90 = 1
    1 > 9/10
    73/37 > 1
    2.
    24/36 = (24:12)/(36:12) = 2/3
    25/100 = (25:25)/(100:25) = 1/4
    143/132 = (143:11)/(132:11) = 13/12
    3535/3737 = (3535:101)/(3737:101) = 35/37

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

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