是 2.4/1又31分之24x4.125-(18又37分之5-13.42)吗?
那么2.4/1又31分之24x4.125-(18又37分之5-13.42)
=2.4x(31/55)x4.125-(18又37分之5-13.42)
=2.4x31x0.075-18又37分之5+13.42
=0.3x31x8x0.075-18又37分之5+13.42
=5.58+13.42-18又37分之5
=19-(18+37分之5)
=19-18-37分之5
=1-37分之5
=37分之32
是 2.4/1又31分之24x4.125-(18又37分之5-13.42)吗?
那么2.4/1又31分之24x4.125-(18又37分之5-13.42)
=2.4x(31/55)x4.125-(18又37分之5-13.42)
=2.4x31x0.075-18又37分之5+13.42
=0.3x31x8x0.075-18又37分之5+13.42
=5.58+13.42-18又37分之5
=19-(18+37分之5)
=19-18-37分之5
=1-37分之5
=37分之32