Question

怎么写数学？

Answer 1

7/15x2/21=2/45, 4/5+4/5+4/5=3x4/5=12/5
5/7x7/25=1/5, 3/7+3/7+3/7+3/7=4x3/7=12/7,
14/5x4/7=8/5, 5/9+5/9+5/9=3x5/9=5/3,
9/16x5/18=5/32, 5/12+5/12+5/12+5/12=4x5/12=5/3,
5/16x12/35=3/28, 11/20+11/20+11/20=3x11/20=33/20,
4/7x5/16=5/28, 4/25+4/25+4/25=3x4/25=12/25,
3/10x20/21=2/7, 7/11+7/11+7/11=3x7/11=21/11,
1/18x3/20=1/120, 3/18=3x1/38=1/38+1/38+1/38,
7/20x1/14=1/40, 15/17=3x5/17=5/17+5/17+5/17,
3/8x5/18=5/48, 3/20=3x1/20-1/20+1/20+1/20,
11/12x1/22=1/24, 9/8=3x3/8=3/8+3/8+3/8,
7/24x8/9=7/27, 15/7=3x5/7=5/7+5/7+5/7,
5/7x14/25=2/5, 18/23=3x6/23=6/23+6/23+6/23.

Answer 2

太多了，还没有奖励。。。。

追问

去完后必有奖励。