Answer:
8/12, 3/12
Step-by-step explanation:
Least common multiple for 3 and 4 is 12. So the denominator should be 12.
For the fraction 2/3, multiply the numerator and denominator by 4 so you will get :
2/3 * 4/4 = 8/12
For the fraction 1/4, multiply the number and denominator by 3 so you will get:
1/4 * 3/3 = 3/12
