Melanie walked her dog 1 1/5 miles Cathy walked her dog 1 3/4 times as far as Melanie did.how many more miles did Cathy walk her dog?

Answer:¹¹/₂₀ miStep-by-step explanation:    Cathy's distance = 1¾ mi Melanie's distance = 1⅕ mi              Difference = 1¾ -1⅕ Subtract the integers and the fractions separately. 1 - 1 = 0 Convert the fractions to common denominators 1¾ -1⅕ = ⁷/₄ - ⁶/₅ The least common multiple of 4 and 5 is 20. ¾ - ⅕ = ¹⁵/₂₀ - ⁴/₂₀ Subtract the two fractions. ¹⁵/₂₀ - ⁴/₂₀ = ¹¹/₂₀ Cathy walked her dog ¹¹/₂₀ mi more than Melanie did.