Mathematics
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current location:Mathematical operation > History of fraction calculation
    1/11-1/1100
    1/100+89/1100
    109/110+1/110
    9/10+1/11
    3/5+3/10
    1/10+1/20
    7/90+1/45
    7/9-7/10
    2/3+2/9
    5/6-1/6
    1/3+1/2
    23/60-1/20
    1/12+3/10
    4/45-1/180
    3/36250+43/1250
    1/29-43/1250
    1/5+2/15
    1/6+1/30
    5/30+1/30
    1/15+1/10

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