5 2/3 * 3/4 = 4 3/12
to find the answer you multiply 5*3 to get 15 you then add 3 to get 17. 17 is your new numerator and 3 stays as the denominator. you then multiply 17 and 3 to get 51. you now multiply the denominators to get 12. 12 goes into 51, 4 times. you get 48. 51-48= 3. so the answer is 4 3/12 hope this helps :)
