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

Toán Lớp 5: Tình nhanh: 373737/474747 + 5757/4747

Toán Lớp 5: Tình nhanh: 373737/474747 + 5757/4747

Comments ( 2 )

  1. Ta thấy:
    373737/474747=37/47
    5757/4747=57/47
    373737/474747 + 5757/4747
    =37/47+57/47
    =(37+57)/47
    =94/47
     

  2. 373737/474747+5757:4747
    =373737=37
    =474747=47
    =5757=57
    =4747=47
    Vậy 37/47+57/47
    =94/47
     

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