1+2又1/6+4又1/12+8又1/20+16又1/30+32又1/42+64又1/56等于多少,
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 08:55:50
![1+2又1/6+4又1/12+8又1/20+16又1/30+32又1/42+64又1/56等于多少,](/uploads/image/z/263199-39-9.jpg?t=1%2B2%E5%8F%881%2F6%2B4%E5%8F%881%2F12%2B8%E5%8F%881%2F20%2B16%E5%8F%881%2F30%2B32%E5%8F%881%2F42%2B64%E5%8F%881%2F56%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%2C)
1+2又1/6+4又1/12+8又1/20+16又1/30+32又1/42+64又1/56等于多少,
1+2又1/6+4又1/12+8又1/20+16又1/30+32又1/42+64又1/56等于多少,
1+2又1/6+4又1/12+8又1/20+16又1/30+32又1/42+64又1/56等于多少,
1+2又1/6+4又1/12+8又1/20+16又1/30+32又1/42+64又1/56
=1+2+1/6+4+1/12+8+1/20+16+1/30+32+1/42+64+1/56
=1+2+4+8+16+32+64+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7+1/7-1/8
=127+1/2-1/8
=127又8分之3
什么意思?