百分之25.5÷[3-(5.55×1又1/3-2又1/10÷0.4)]
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百分之25.5÷[3-(5.55×1又1/3-2又1/10÷0.4)]
=25.5%÷[3-(5.55×1又1/3-2又1/10÷0.4)]
=25.5%÷[3-(5.55×4/3-21/10*5/2)]
==25.5%÷[3-(5.55×4/3-21/10*5/2)]
=25.5%÷[3-(5.55×4/3-21/10*5/2)
=0.255÷【3-(7.4-5.25)】
=0.255÷(3-2.15)
=0.255÷0.85
=0.3
=25.5%÷[3-(5.55×1又1/3-2又1/10÷0.4)]
=25.5%÷[3-(5.55×4/3-21/10*5/2)]
==25.5%÷[3-(5.55×4/3-21/10*5/2)]
=25.5%÷[3-(5.55×4/3-21/10*5/2)
=0.255÷【3-(7.4-5.25)】
=0.255÷(3-2.15)
=0.255÷0.85
=0.3
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