7/29×3/8+6/29×7/12=?(简便计算)?能简便就简便

问题描述:

7/29×3/8+6/29×7/12=?(简便计算)?能简便就简便


7/29×3/8+6/29×7/12+3/29×7/9
=1/29×(7×3/8+6×7/12+3×7/9)
=1/29×(203/24)=7/24
7/29×3/8+6/29×7/12+3/29×7/9
=7/29×(3/8+6/12+3/9)
=7/29×(29/24)=7/24你的题目错了,是7/29×3/8+6/29×7/12 不是7/29×3/8+6/29×7/12+3/29×7/9!SOORY