求救3道初一的数学计算题!37.5+(28又5/7)+[(-46又1/2)+(-25又1/7)](-2又3/5)+(-1/4)+(-3又2/5)+(+2又3/4)+(-1又1/2)+(+1又1/3)1又1/4+(-6.5)+3又3/8+(-1.25)+2又5/85/2*3/7-(-3/7)*11/2-(-1/2
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/28 05:07:38
![求救3道初一的数学计算题!37.5+(28又5/7)+[(-46又1/2)+(-25又1/7)](-2又3/5)+(-1/4)+(-3又2/5)+(+2又3/4)+(-1又1/2)+(+1又1/3)1又1/4+(-6.5)+3又3/8+(-1.25)+2又5/85/2*3/7-(-3/7)*11/2-(-1/2](/uploads/image/z/5915785-49-5.jpg?t=%E6%B1%82%E6%95%913%E9%81%93%E5%88%9D%E4%B8%80%E7%9A%84%E6%95%B0%E5%AD%A6%E8%AE%A1%E7%AE%97%E9%A2%98%2137.5%2B%EF%BC%8828%E5%8F%885%2F7%EF%BC%89%2B%5B%28-46%E5%8F%881%2F2%EF%BC%89%2B%EF%BC%88-25%E5%8F%881%2F7%EF%BC%89%5D%EF%BC%88-2%E5%8F%883%2F5%EF%BC%89%2B%EF%BC%88-1%2F4%EF%BC%89%2B%EF%BC%88-3%E5%8F%882%2F5%EF%BC%89%2B%EF%BC%88%2B2%E5%8F%883%2F4%EF%BC%89%2B%EF%BC%88-1%E5%8F%881%2F2%EF%BC%89%2B%EF%BC%88%2B1%E5%8F%881%2F3%EF%BC%891%E5%8F%881%2F4%2B%EF%BC%88-6.5%EF%BC%89%2B3%E5%8F%883%2F8%2B%EF%BC%88-1.25%EF%BC%89%2B2%E5%8F%885%2F85%2F2%2A3%2F7-%EF%BC%88-3%2F7%EF%BC%89%2A11%2F2-%EF%BC%88-1%2F2)
求救3道初一的数学计算题!37.5+(28又5/7)+[(-46又1/2)+(-25又1/7)](-2又3/5)+(-1/4)+(-3又2/5)+(+2又3/4)+(-1又1/2)+(+1又1/3)1又1/4+(-6.5)+3又3/8+(-1.25)+2又5/85/2*3/7-(-3/7)*11/2-(-1/2
求救3道初一的数学计算题!
37.5+(28又5/7)+[(-46又1/2)+(-25又1/7)]
(-2又3/5)+(-1/4)+(-3又2/5)+(+2又3/4)+(-1又1/2)+(+1又1/3)
1又1/4+(-6.5)+3又3/8+(-1.25)+2又5/8
5/2*3/7-(-3/7)*11/2-(-1/2)*3/7
求救3道初一的数学计算题!37.5+(28又5/7)+[(-46又1/2)+(-25又1/7)](-2又3/5)+(-1/4)+(-3又2/5)+(+2又3/4)+(-1又1/2)+(+1又1/3)1又1/4+(-6.5)+3又3/8+(-1.25)+2又5/85/2*3/7-(-3/7)*11/2-(-1/2
你到底是三道题还是四道题呢?究竟有什么不懂啊?
37.5 +(28又5/7)+ [(-46又1/2)+ (-25又1/7)]
= 37.5 +28 +5/7 -46.5 -25 -1/7
= -(46.5-37.5) +(28-25) +(5-1)/7
= -9 +3 +4/7
= -6 +4/7
= -5又3/7
(-2又3/5)+ (-1/4)+ (-3又2/5)+ (+2又3/4)+ (-1又1/2)+ (+1又1/3)
= -2 -3/5 -1/4 -3 -2/5 +2 +3/4 -1 -1/2 +1 +1/3
= -2 -3 +2 -1 +1 -3/5 -2/5 -1/4 +3/4 -1/2 +1/3
= -3 -5/5 +2/4 -1/2 +1/3
= -3 +1/2 -1/2 -1 +1/3
= -3 -2/3
= -3又2/3
(1又1/4)+ (-6.5)+ (3又3/8)+ (-1.25)+ (2又5/8)
= 1 +1/4 -6.5 +3 +3/8 -1.25 +2 +5/8
= 1 +3 +2 -6.5 -1.25 +1/4 +3/8 +5/8
= 6 -6.5 -1.25 +1.25 +1
= -0.5 +1
= 0.5
(5/2)*(3/7)- (-3/7)*(11/2)- (-1/2)*(3/7)
=(3/7)*[5+ 11 +1]/2
=(3/7)*17/2
= 51/14
计算题,自己做呀,这样才有长大的机会呀