帮忙计算下,能简算就简算
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/09 20:43:47
帮忙计算下,能简算就简算
1-(3又1/2-2又1/2÷1又1/4)*4/9
2000÷5/21-3又1/5*2000
[0.186+(1又3/4-1/2)-0.186-1又1/4]+45
7/10÷(1-3/4*0.4)
1-(3又1/2-2又1/2÷1又1/4)*4/9
2000÷5/21-3又1/5*2000
[0.186+(1又3/4-1/2)-0.186-1又1/4]+45
7/10÷(1-3/4*0.4)
![帮忙计算下,能简算就简算](/uploads/image/z/1302533-53-3.jpg?t=%E5%B8%AE%E5%BF%99%E8%AE%A1%E7%AE%97%E4%B8%8B%2C%E8%83%BD%E7%AE%80%E7%AE%97%E5%B0%B1%E7%AE%80%E7%AE%97)
1-(7/2-5/2*4/5)*4/9=1/3
2000*21/5-16*2000/5=2000/5*(21-16)=2000
[0.186-0.186+(1又3/4-1又1/4)-1/2]+45=45
7/10÷(1-3/4*4/10)=1
2000*21/5-16*2000/5=2000/5*(21-16)=2000
[0.186-0.186+(1又3/4-1又1/4)-1/2]+45=45
7/10÷(1-3/4*4/10)=1