(1.3 + 4/5)/(3 - 2/3)
=(13/10 + 8/10)/(9/3 - 2/3)
=(21/10)/(7/3)
=9/10
=0.9
=(13/10 + 8/10)/(9/3 - 2/3)
=(21/10)/(7/3)
=9/10
=0.9
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