递等式计算(28.85-17.5)/1.2+8.5
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递等式计算(28.85-17.5)/1.2+8.5
递等式计算(28.85-17.5)/1.2+8.5
递等式计算(28.85-17.5)/1.2+8.5
(28.85-17.5)/1.2+8.5
=11.35/1.2+8.5
=227/24+17/2
=431/24
(28.85-17.5)/1.2+8.5
=21÷1.2+8.5
=17.5+8.5
=26
(28.85-17.5)÷1.2+8.5×
=11.35÷1.2+8.5
=9又11/24+8又1/2
=17又23/24