(1+3/4-7/8-7/12)*(-24)要过程还有6.868*(-5)+6.868*(-12+6.868)*(+17)错啦错啦。。第二题是6.868*(-5)+6.868*(-12)+6.868*(+17)
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![(1+3/4-7/8-7/12)*(-24)要过程还有6.868*(-5)+6.868*(-12+6.868)*(+17)错啦错啦。。第二题是6.868*(-5)+6.868*(-12)+6.868*(+17)](/uploads/image/z/29512-64-2.jpg?t=%281%2B3%2F4-7%2F8-7%2F12%29%2A%28-24%29%E8%A6%81%E8%BF%87%E7%A8%8B%E8%BF%98%E6%9C%896.868%2A%EF%BC%88-5%EF%BC%89%2B6.868%2A%EF%BC%88-12%2B6.868%EF%BC%89%2A%EF%BC%88%2B17%EF%BC%89%E9%94%99%E5%95%A6%E9%94%99%E5%95%A6%E3%80%82%E3%80%82%E7%AC%AC%E4%BA%8C%E9%A2%98%E6%98%AF6.868%2A%EF%BC%88-5%EF%BC%89%2B6.868%2A%EF%BC%88-12%EF%BC%89%2B6.868%2A%EF%BC%88%2B17%EF%BC%89)
(1+3/4-7/8-7/12)*(-24)要过程还有6.868*(-5)+6.868*(-12+6.868)*(+17)错啦错啦。。第二题是6.868*(-5)+6.868*(-12)+6.868*(+17)
(1+3/4-7/8-7/12)*(-24)要过程
还有6.868*(-5)+6.868*(-12+6.868)*(+17)
错啦错啦。。第二题是6.868*(-5)+6.868*(-12)+6.868*(+17)
(1+3/4-7/8-7/12)*(-24)要过程还有6.868*(-5)+6.868*(-12+6.868)*(+17)错啦错啦。。第二题是6.868*(-5)+6.868*(-12)+6.868*(+17)
(1+3/4-7/8-7/12)*(-24)
=-24-18+21+14
=-7
6.868*(-5)+6.868*(-12)+6.868)*(+17)
=6.868*(-5-12+17)
=0
(7/4-7/8-7/12)/(-7/8)+(-8/3)=(要过程)原式=(7/4-7/8-7/12)/(-7/8)+(-8/3) =((7*6-7*3-7*2)/24)/(-7/8)+(-8/3) =(7/24)*(-8&...
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(7/4-7/8-7/12)/(-7/8)+(-8/3)=(要过程)原式=(7/4-7/8-7/12)/(-7/8)+(-8/3) =((7*6-7*3-7*2)/24)/(-7/8)+(-8/3) =(7/24)*(-8/7)-8/3 =-8/24-8/3 =-9/3 =-3
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