Question

4.8÷(4/5)+6.2÷5/4-0.8怎么简便计算？

Answer 1

直接计算，

4.8÷(4/5)+6.2÷5/4-0.8

=4.8÷0.8+6.2×0.8-0.8

=6+(6.2-1)×0.8

=6+5.2×0.8

=6+4.16

=10.16

Answer 2

4.8÷(4/5)+6.2÷5/4-0.8
=4.8÷0.8+6.2*4/5-0.8
=6+(6.2-1)*0.8
=6+5.2*0.8
=10.16
没什么简便方法，前两个式子都是除法运算，所以…

Answer 3

简便计算
4.8×4/5+6.2÷5/4-0.8
=4.8×4/5+6.2×4/5-4/5
=（4.8+6.2-1）×4/5
=10×4/5
=8

Answer 4

4.8÷(4/5)+6.2÷5/4-0.8
=48/10*5/4+62/10*4/5-8/10
=24/5* 5/4+31/5 *4/5-4/5
=6+4/5*(31/5-1)
=6+4/5* 26/5
=6+104/25
=6+4又4/25
=10又4/5

Answer 5

4.8÷(4/5)+6.2÷5/4-0.8
=4.8×5/4+6.2×4/5-4/5
=6+(6.2-1)×4/5
=6+5.2×0.8
=6+4.16
=10.16