1. which fractions are equivalent to 25/45 a. 5/9, 15/28 b. 30/48, 75/135 c. 5/9, 75/135 d. 35/54, 40/108 2. write the fraction 10/22 in simplest form. 3. write 3 1/3 as an improper fraction. 4. a truck’s engine needs 3 1/4 gallons of oil for an oil change. how many quarts of oil are needed? 5. use prime factorization to find the lcm of 30 and 40. 6. an “a” train leaves a subway station every 12 minutes. an “e” train leaves every 9 minutes. if both trains just left the station on parallel tracks, when will both leave the station together again?