付64除以括号负1⼀2-4分之1+1⼀8反括号等于多少

付64除以括号负1/2-4分之1+1/8反括号等于多少
2025-03-11 10:51:16
推荐回答(1个)
回答1:

-1/64÷(-1/2-1/4+1/8)
=-1÷(-1/2×64-1/4×64+1/8×64)
=-1÷(-32-16+8)
=-1÷(-40)
=1/40