5/12x3/4÷9/8
=5/16÷9/8
=5/18
3/10÷9/20÷6/5
=2/3÷6/5
=5/9
5/12x3/4÷9/8
=5/16÷9/8
=5/18
3/10÷9/20÷6/5
=2/3÷6/5
=5/9
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