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

Toán Lớp 5: rút gọn 360/640= 2310/3850= 1313/4747=

Toán Lớp 5: rút gọn
360/640=
2310/3850=
1313/4747=

Comments ( 2 )

  1.  
    Lời giải và giải thích chi tiết:
     

    toan-lop-5-rut-gon-360-640-2310-3850-1313-4747

  2. 360/640 = {360 : 40}/{640 : 40} = 9/16
    2310/3850 = {2310 : 770}/{3850 : 770} = 3/5
    1313/4747 = {1313 : 101}/{4747 : 101} = 13/47
    #dtkc

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

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