10/9=111.1%7/10=70%1/2=50%32/400=8%9/10=90%6/25=24%15/500=3%15/2=750%2/10=20%1/2=50%7/8=87.5%
先把分数化成小数,遇到除不尽时,通常保留3位小数,然后再把小数化成百分数如3/4=0.75=75%2/9≈0.222=22.2%
111.11%70%50%8%90%24%750%20%50%87.5%