WORKING: find a common denominator. the lowest common demominator for 5 and 6 is 30. to get from 6 to 30, you multiply by 5. whatever you do to the numerator, you do to the denominator, so you multiply 3 by 5 as well and get 15. 3/6 becomes 15/30
do the same with the other fraction. to get from 5 to 30 you ×5, so do 2×5 as well, which is 10. 2/5 = 10/30
