如题所述
先对分数相乘进行约分,这样乘出来的数较简单,再提取公因式后相加,最后再乘和化成最简分式:
2/7+8/9×6/7
=2/7+8/3×2/7
=(1+8/3)x2/7
=(11/3)x2/7
=11x2/(3x7)
=22/21
=1(1/22)
2/7+8/9×6/7
=2/7+8/3×2/7
=(1+8/3)x2/7
=(11/3)x2/7
=11x2/(3x7)
=22/21
=1(1/22)
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