(4.85/5/18-3.6+6.15*3又3/5)(1-8/9)

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(4.85/5/18-3.6+6.15*3又3/5)(1-8/9)(4.85/5/18-3.6+6.15*3又3/5)(1-8/9)(4.85/5/18-3.6+6.15*3又3/5)(1-8/9)(

(4.85/5/18-3.6+6.15*3又3/5)(1-8/9)
(4.85/5/18-3.6+6.15*3又3/5)(1-8/9)

(4.85/5/18-3.6+6.15*3又3/5)(1-8/9)
(4.85/5/18-3.6+6.15*3又3/5)(1-8/9)
=(4.85×3.6-3.6+6.15×3.6)×(1/9)
=(4.85-1+6.15)×3.6×(1/9)
=10×3.6×(1/9)
=4;
如果本题有什么不明白可以追问,

(4.85/5/18-3.6+6.15*3又3/5)(1-8/9)
= (18x 0.97 - 18x 0.2 + 6.15 x 18/5 ) /9
= (18x 0.97 - 18x 0.2 +1.23 x 18 ) /9
= 18x ( 0.97 -0.2 +1.23 ) /9
= 2 x 2
= 4