For example, -3/5 is fractions (also the lead); is the ratio, not fractions. See more at: http://loigiaihay.com/bai-139-trang-58-sgk-toan-6-tap-2-c41a6160.html#ixzz46wQoIoBs See more at: http: //loigiaihay.com/bai-139-trang-58-sgk-toan-6-tap-2-c41a6160.html#ixzz46wPTN2Z2
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