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

Toán Lớp 5: b. ( 5/6+ 7/12) : a với a = 15/8

Toán Lớp 5: b. ( 5/6+ 7/12) : a với a = 15/8

Comments ( 2 )

  1. @Sans
    (5/6 + 7/12) : 15/8
    = (10/12 + 7/12) : 15/8
    = 17/12 : 15/8
    = 17/12 x 8/15
    = 34/45
     

  2. Giải đáp:
    Ta có: a = 15/8
    = ( 5/6 + 7/12 ) : 15/8
    = ( 10/12 + 7/12 ) : 15/8
    = 17/12 : 15/8
    = 17/12 × 8/15
    = 34/45
    @Akira2007
     

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