Mathematics
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current location:Mathematical operation > History of fraction calculation
    1/2-1/8
    1/9+2/9
    11/100+1/900
    1/100+1/10
    3/100-1/50
    2/25-1/20
    2/25-1/20
    1/10-1/50
    1/2-2/5
    1/3+1/6
    7/30+1/10
    1/5+1/30
    4/45+1/90
    1/3+1/6
    1/9+2/9
    6/11+1/99
    1/11+5/11
    1/9-2/99
    19/90-1/10
    19/90-1/10

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