Question

30-0.14÷0.15x8怎么简便运算？

Answer 1

30-0.14÷0.15x8
=30-14÷15x8
=30-(14/15)x8
=30-(1- 1/15)x8
=30-8 + 8/15
=22 +8/15
=22又15分之8