Mathematics
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current location:Mathematical operation > History of fraction calculation
    1/150000+1/100000
    3/2200+1/100
    1/2750+1/1000
    1/1150+1/100
    3/10+1/4
    3/5+2/7
    1/7+2/3
    1/7+2/9
    3/340+1/20
    1/4-1/3
    9/540+6/540
    1/60+1/90
    1/3+1/6
    1/9+2/9
    1/18+1/18
    1/20+1/180
    9/100-1/25
    1/10-1/100
    1/6-1/15
    1/50+7/900

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