(-3/2)-13/4+(-13/3)-8/3=,49.7-[-23又3/4+(18.7-25.25]=,|12.7-(-8.9)_数学解答

(-3/2)-13/4+(-13/3)-8/3=,49.7-[-23又3/4+(18.7-25.25]=,|12.7-(-8.9)|=,4.73-[2又2/3-(1又4/5+2.65]-1/2
最后一个分数是1/3,2.65改为2.63

人气：431 ℃　时间：2020-04-03 14:56:09

解答

(-3/2)-13/4+(-13/3)-8/3=-6/4-13/4-13/3)-8/3=-19/4-21/3=-11又3/449.7-[-23又3/4+(18.7-25.25]=49.7-[-23-3/4+18.7-25-1/4]=49.7-[-49+18.7]=49.7+49-18.7=31+49=80|12.7-(-8.9)|=|12.7+8.9|=21.64.73-[2又2/3-(1...