算24点,1,4,5,6,要求常规运算得出.

问题描述:

算24点,1,4,5,6,要求常规运算得出.

4 ÷ (1 - 5 ÷ 6)
4 ÷ (1 - (5 ÷ 6))
6 ÷ (5 ÷ 4 - 1)
6 ÷ ((5 ÷ 4) - 1)