To solve this, you'd want to get the equation where both fractions have the same denominator. Two & three are both factors of six so you'd multiply 1/2 by 3 & 1/3 by 2. The parent equation would look similar to 3/6-2/6=x to solve for x you'd just subtract two from three and put the difference over six. Your answer is "I ran one sixth of a mile farther on Monday than I ran on Tuesday."