Question

九点3÷9/5+7点7×5/6+5/6简便运算？

Answer 1

解：9.3÷9/5+7.7×5/6+5/6=9.3*5/9+7.7×5/6+5/6=9.3/1.5*5/6+7.7×5/6+5/6=5/6*（9.3/1.5+7.7+1）=5/6*14.9=5/6*149/10=745/60=149/12。

Answer 2

9.3÷9/5+7.7×5/6+5/6
=9.3×5/9+7.7×5/6+5/6
=3.1×5/3+(7.7+1)×5/6
=31/10×5/3+8.7×5/6
=31/6+43.5/6
=74.5/6
=149/12
那个9/5应该是6/5吧
9.3÷6/5+7.7×5/6+5/6
=9.3×5/6+7.7×5/6+5/6
=(9.3+7.7+1)×5/6
=18×5/6
=15

Answer 3

9.3÷9/5+7.7×5/6+5/6
＝3.1÷3／5十7.7x5／6十5／6
＝6.2x5／5十7.7x5／6十5／6
＝（6.2十7.7十0.1）×5／6十0.9x5／6
＝15x5／6十0.3x5／2
＝l2.5十0.75
＝13.25

Answer 4

简便运算如下：
9.3÷9/5+7.7×5/6+5/6
=93/10×5/9+（7.7+1）×5/6
=31/6+87/10×5/6
=62/12+87/12
=149/12

Answer 5

计算如下：
九点3÷9/5+7点7×5/6+5/6
=9.3÷9/5+7.7×5/6+5/6
=9.3×5/9+8.7×5/6
=3.1×5/3+8.7×5/6
=6.2×5/6+8.7×5/6
=(6.2+8.7)×5/6
=14.9×5/6
=74.5/6
=149/12