3/2-5/6+7/12-9/20+11/30-13/42 = = = 简便算
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:2024/07/18 20:49:02
3/2-5/6+7/12-9/20+11/30-13/42 = = = 简便算
![3/2-5/6+7/12-9/20+11/30-13/42 = = = 简便算](/uploads/image/z/8453344-40-4.jpg?t=3%2F2-5%2F6%2B7%2F12-9%2F20%2B11%2F30-13%2F42+%3D+%3D+%3D+%E7%AE%80%E4%BE%BF%E7%AE%97)
3/2-5/6+7/12-9/20+11/30-13/42
=3/2+7/12-9/20+11/30-13/42-5/6
=18/12+7/12-27/60+22/60-13/42-35/42
=25/12-5/60-48/42
=25/12-1/12-8/7
=2-8/7
=6/7
=3/2+7/12-9/20+11/30-13/42-5/6
=18/12+7/12-27/60+22/60-13/42-35/42
=25/12-5/60-48/42
=25/12-1/12-8/7
=2-8/7
=6/7
3/2-5/6+7/12-9/20+11/30-13/42 = = = 简便算
6/5-12/7+20/9+-30/11+42/13=?要用简便算法.
简便运算:2/3 +7/12+ 9/20 +11/30+ 13/42=?
1+1/2-5/6+7/12-9/20+11/30-13/42+15/56=怎样简便计算
2/3-5/6+7/12-9/20+11/30-13/42怎样简便计算
简便计算:4/3-7/12+9/20-11/30+13/42-15/56=?
1-6/5+7/12-9/20+11/30-13/42+15/56=?用简便方法计算
简便运算:3分之2减6分之5加12分之7减20分之9加30分之11减42分之13=?
7/12-9/20+11/30-13/42+15/56=?简便方法计算
7/10÷1/99+7/10=?简便算法 1/2÷(11/12-5/9)简便算法 快
简便运算(快哟!)1-5/6+7/12-9/20+11/30-13/42+15/56-17/42+19/90简便运算喔!
4/3-7/12+9/20-11/30+13/42-15/56=(用简便方法)