Question

负四又九分之七减负三又六分之一减正二又九分之二加负六又六分之一等于

规定a*b=A+B分之ab 计算2米（-3）的值

Answer 1

解：原式=(-4又7/9)-(-3又1/6)-(+2又2/9)+(-6又1/6)
=-4又7/9+3又1/6+(-2又2/9)+(-6又1/6)
=[-4又7/9+(-2又2/9)]+[3又1/6+(-6又1/6)]
=-(4又7/9+2又2/9)+[-(6又1/6-3又1/6)]
=-7+(-3)
=-(7+3)
= -10

Answer 2

4515452

Answer 3

题太复杂