It is 4/13.
13 less than 4 times a number 13 less than is "-13" 4 times a number is "4x" 4x-13■
The mixed number for 13 over 4 = 31/4
13 over 4 as a mixed number = 31/4
9
13*4 is 52.
13/4 = 31/4
13 over 4 as a mixed number = 31/4
13
13
31 (3*4+1 = 13)
13 and 4 are relatively prime.
no 2 and 4 aren't factors of 13. 13 is a prime number.