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

Toán Lớp 7: 2h15p = ? giờ NÊU CÁCH TÍNH LUÔN Ạ

Toán Lớp 7: 2h15p = ? giờ
NÊU CÁCH TÍNH LUÔN Ạ

Comments ( 2 )

  1. $\#phnn$
    15p=15/60h=1/4h
    $\\$ -> 2h15p=2h+1/4h==9/4h

  2. 15p $\dfrac{1}{4}$ = h = 0,25
    ⇒ 2h15p = 2,25h
    #thew#
     

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