Answer:
A} 19/30
B} 25/44
Explanation:
A} Multiply the numerator and the denominator (3/10) by 3. You would get 9/30. Then multiply the numerator and denominator (1/3) by 10. You would get 10/30. Then add 9/30 + 10/30. It equals 19/30, and it can't be simplified.
B} Multiply the numerator and denominator (3/4) by 11. Then multiply the numerator and denominator (2/11) by 4. You would get 33/44 - 8/44. It equals 25/44. It can't be simplified.