(51.7-28.5)/25/0.4

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(51.7-28.5)/25/0.4(51.7-28.5)/25/0.4(51.7-28.5)/25/0.4(51.7-28.5)÷25÷0.4=(51.7+30+1.5)÷(25×0.4)=23.2

(51.7-28.5)/25/0.4
(51.7-28.5)/25/0.4

(51.7-28.5)/25/0.4
(51.7-28.5)÷25÷0.4
=(51.7+30+1.5)÷(25×0.4)
=23.2÷10
=2.32
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