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

Toán Lớp 7: 1/2+1/3+1/6+1/12+1/15+1/20+1/35+1/42+1/63

Toán Lớp 7: 1/2+1/3+1/6+1/12+1/15+1/20+1/35+1/42+1/63

Comments ( 2 )

  1. Giải đáp: $\frac{799}{630}$ 
     
    Lời giải và giải thích chi tiết:
    $\frac{1}{2}$+$\frac{1}{3}$+$\frac{1}{6}$ +$\frac{1}{12}$ +$\frac{1}{15}$ +$\frac{1}{20}$ +$\frac{1}{35}$ +$\frac{1}{42}$ +$\frac{1}{63}$ 
    = $\frac{630}{1260}$ +$\frac{420}{1260}$ +$\frac{210}{1260}$ +$\frac{105}{1260}$ +$\frac{84}{1260}$ +$\frac{63}{1260}$ +$\frac{36}{1260}$ +$\frac{30}{1260}$ +$\frac{20}{1260}$ 
    = $\frac{1598}{1260}$ 
    = $\frac{799}{630}$ 
    #hoaanhdao Xin tus 5* và ctlhn!!!
     
     

  2. Giải đáp:
    1/2+1/3+1/6+1/12+1/15+1/20+1/35+1/42+1/63=799/630
     

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

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