作业帮数学简算（快来答啊,）2/3*[(3/4-1/6)÷1/5] 1/3÷(2/3-2/5)*3/5 12/15*(5/6+3/4)+4/5 7/9÷11/5+2/9*5/11
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 12:32:59
![数学简算（快来答啊,）2/3*[(3/4-1/6)÷1/5] 1/3÷(2/3-2/5)*3/5 12/15*(5/6+3/4)+4/5 7/9÷11/5+2/9*5/11](/uploads/image/z/12574063-55-3.jpg?t=%E6%95%B0%E5%AD%A6%E7%AE%80%E7%AE%97%EF%BC%88%E5%BF%AB%E6%9D%A5%E7%AD%94%E5%95%8A%2C%EF%BC%892%2F3%2A%5B%283%2F4-1%2F6%29%C3%B71%2F5%5D+1%2F3%C3%B7%282%2F3-2%2F5%29%2A3%2F5+12%2F15%2A%285%2F6%2B3%2F4%29%2B4%2F5+7%2F9%C3%B711%2F5%2B2%2F9%2A5%2F11)
数学简算（快来答啊,）2/3*[(3/4-1/6)÷1/5] 1/3÷(2/3-2/5)*3/5 12/15*(5/6+3/4)+4/5 7/9÷11/5+2/9*5/11
数学简算（快来答啊,）
2/3*[(3/4-1/6)÷1/5]
1/3÷(2/3-2/5)*3/5
12/15*(5/6+3/4)+4/5
7/9÷11/5+2/9*5/11
数学简算（快来答啊,）2/3*[(3/4-1/6)÷1/5] 1/3÷(2/3-2/5)*3/5 12/15*(5/6+3/4)+4/5 7/9÷11/5+2/9*5/11
2/3*[(3/4-1/6)÷1/5]
=2/3*(3/4-1/6)*5
=2/3*7/12*5
=(2*7*5)/3*12
=35/18
=1又17/18
1/3÷(2/3-2/5)*3/5
=1/3÷4/15*3/5
=1/3*15/4*3/5
=(15*3)/(3*4*5)
=1/4
12/15*(5/6+3/4)+4/5
=4/5*(5/6+3/4+1)
=4/5*31/12
=124/60
=2又1/15
7/9÷11/5+2/9*5/11
=7/9*5/11+2/9*5/11
=(7/9+2/9)*5/11
=1*5/11
=5/11