|-3又1⼀2-(-2又1⼀3)|-(|-5又1⼀3|-|-3⼀4|),2又1⼀3-( 3又1⼀2)-{-2又1⼀4 [5-(2又1⼀2 3又2⼀3]}

过程,谢谢!
2024-12-17 19:45:35
推荐回答(1个)
回答1:

原式=|-3又1/2+2又1/3|-(5又1/3-3/4)
=3又1/2-2又1/3-5又1/3+3/4
=(3又1/2+3/4)-(2又1/3+5又1/3)
=4又1/4-7又2/3
=-(7又2/3-4又1/4)
=-[(7-4)+(2/3-1/4)]
=-(3+5/12)
=-3又5/12

-6又3/10+1.4=-4.9