我有击倒他不会啦,我笨,请亲们伴我一步一步写出来.
来源:学生作业帮 编辑:搜狗做题网作业帮 分类:数学作业 时间:2024/08/14 16:31:01
我有击倒他不会啦,我笨,请亲们伴我一步一步写出来.
8+(副四分之三)-5-(-0.25)
(负六分之一+四分之三-十二分之一)×(-24)
8+(副四分之三)-5-(-0.25)
(负六分之一+四分之三-十二分之一)×(-24)
![我有击倒他不会啦,我笨,请亲们伴我一步一步写出来.](/uploads/image/z/12021831-63-1.jpg?t=%E6%88%91%E6%9C%89%E5%87%BB%E5%80%92%E4%BB%96%E4%B8%8D%E4%BC%9A%E5%95%A6%2C%E6%88%91%E7%AC%A8%2C%E8%AF%B7%E4%BA%B2%E4%BB%AC%E4%BC%B4%E6%88%91%E4%B8%80%E6%AD%A5%E4%B8%80%E6%AD%A5%E5%86%99%E5%87%BA%E6%9D%A5.)
8+(副四分之三)-5-(-0.25)
=8+(-3/4)-5-(-1/4)
=8-3/4-5+1/4
=8-5+1/4-3/4
=3-1/2
=5/2
(负六分之一+四分之三-十二分之一)×(-24)
=(-1/6+3/4-1/12)×(-24)
=-(1/6-3/4+1/12)×(-24)
=(1/6-3/4+1/12)×24
=24×1/6-24×3/4+24×1/12
=4-18+2
=6-18
=-12
=8+(-3/4)-5-(-1/4)
=8-3/4-5+1/4
=8-5+1/4-3/4
=3-1/2
=5/2
(负六分之一+四分之三-十二分之一)×(-24)
=(-1/6+3/4-1/12)×(-24)
=-(1/6-3/4+1/12)×(-24)
=(1/6-3/4+1/12)×24
=24×1/6-24×3/4+24×1/12
=4-18+2
=6-18
=-12