(-2009又5/6)+(-2008又5/6)+4018+(1又1/2)

问题描述:

(-2009又5/6)+(-2008又5/6)+4018+(1又1/2)

-7/6

5/6

(-2009又5/6)+(-2008又5/6)+4018+(1又1/2)
=-2009+(-2008)+(-5/6)+(-5/6)+4018+1+(1/2)
=-4017+(-10/6)+4008+1+(1/2)
=2+(-7/6)
=5/6