Question

2/3:5/7,1/4:1/2,2/5:2/3,3/4:1/2,5/6:7/12

Answer 1

2/3 : 5/7 = 2/3 * 7/5 = 14/15
1/4 : 1/2 = 1/4 * 2/1 = 2/4 = 1/2
2/5 : 2/3 = 2/5 * 3/2 = 3/5
3/4 : 1/2 = 3/4 * 2/1 = 3/2 = 1  1/2
5/6 : 7 /12 = 5/6 * 12/7 = 10/7 = 1  3/7 

Answer 2

It looks like you've provided several pairs of fractions. If you would like me to compare these fractions or perform any specific operations with them, please let me know. Here are the fractions you provided:

1. 2/3 : 5/7
2. 1/4 : 1/2
3. 2/5 : 2/3
4. 3/4 : 1/2
5. 5/6 : 7/12

If you have any questions or specific calculations you'd like me to perform with these fractions, please specify, and I'd be happy to assist you.