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

Toán Lớp 5: ( 3/7× 11/15 + 3/7 × 4/15) ÷ 6/35

Toán Lớp 5: ( 3/7× 11/15 + 3/7 × 4/15) ÷ 6/35

Comments ( 2 )

  1. *Giải đáp + giải thích các bước giải :
     (3/7 xx 11/15 + 3/7 xx 4/15):6/35
    =[3/7 xx (11/15 + 4/15)]:6/35
    =[3/7 xx 1]:6/35
    =3/7:6/35
    =3/7xx35/6
    =(3xx35)/(7xx6)
    =(3xx7xx5)/(7xx3xx2)
    =5/2
    #Blue

  2. Giải đáp:
    ( 3/7 × 11/15 + 3/7 × 4/15 ) : 6/35
    = [ 3/7 × ( 11/15 + 4/15 ) ] : 6/35
    = ( 3/7 × 1 ) : 6/35
    = 3/7 : 6/35
    = 3/7 × 35/6
    = 105/42
    = 5/2
    #AkiSha2007

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