-4-[-5+(0.2×3分之1-1)÷(-1又5分之2)]

2025-01-03 20:01:38
推荐回答(2个)
回答1:

-4-[-5+(0.2×3分之1-1)÷(-1又5分之2)]
=-4-[-5+(15分之1-1)÷(-5分之7)]
=-4-[-5-15分之14÷(-5分之7)]
=-4-[-5+3分之2]
=-4+5-3分之2
=3分之1

回答2:

-4-[-5+(0.2×3分之1-1)÷(-1又5分之2)]
=-4-[-5+(15分之1-1)×7分之5]
=-4-[-5+(15分之14)×7分之5]
=-4-(-5+2)
=-4-(-3)
=-1