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5Ⅹ÷6=1.7

5x ÷ 6 = 1.7 5x = 1.7 × 6 5x = 10.2 x = 2.04 ------------- 望采纳,谢谢

解: 1÷5/7-1÷6分之五简便计算 =1x7/5-1x6/5 =7/5-6/5 =1/5 =0.2

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= 5X-32.5=1.7 = 5X=1.7+32.5 = 5X=34.2 = X=6.84

7分之6÷5+1/7×5分之1 =6/35+1/35 =7/35 =1/5

原式=1/6×7/11+5/6×7/11 =(1/6+5/6)×7/11 =1×7/11 =7/11 估计题目写错了。

第一题是: =七分之十二*(5*五分之六—六分之五*五分之一) =七分之十二*(6—六分之一) =七分之十二*六分之三十五 =10 *是乘。 请采纳!然后帮你做其他题!

(1一7/16)÷X=6/7 9/16÷x=6/7 x=9/16÷6/7 x=21/32

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