How to write fractions a / b Other spellings ratio a / b in that the fraction a / b, then a and b are required to be integers are in the lead, then a and b are any numbers, with b ≠ 0. See more at: http://loigiaihay.com/bai-139-trang-58-sgk-toan-6-tap-2-c41a6160.html#ixzz46wPTN2Z2
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