1/12+1/3x3/5-1/8 递等式计算
问题描述：
1/12+1/3x3/5-1/8 递等式计算
答
1/12+1/3x3/5-1/8
=1/12+1/5-1/8
=10/120+24/120-15/120
=19/120
答
j解
原式
=1/12+1/5-1/8
=5/60+12/60-1/8
=17/60-1/8
=68/240-30/240
=38/240
=19/120
答
1/12+1/3x3/5-1/8
=1/12+1/5-1/8
=17/60-1/8
=19/120