Mathematics
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current location:Mathematical operation > History of fraction calculation
    19/300+1/300
    19/300+1/300
    1/30+3/100
    1/30+3/100
    1/3-3/10
    303/1000+91/3000
    1/30-3/1000
    7/30-1/5
    61/300+3/100
    91/300-1/10
    1/3-3/100
    7/8+1/16
    1/2+3/8
    1/10+2/5
    1/11-1/1100
    1011/11000-1/1000
    91/1000+1/1100
    999/11000+1/5500
    91/1000-1/5500
    981/11000+1/550

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