A.) The first one is 12 because the lowest multiple of both 12 and 4
B.) The second one is 4 because if you were to multiply the denominator of the left fraction by 4 to get 16 (which is the same as the right fraction), then you multiply the numerator by 4 to get 4
D.) The third one is 5 because if you were to create the same denominators on both fractions, you would have to multiply the left denominator and numerator by 5
A.) The fourth one is A because the right fraction is an improper fraction, which means it is a mixed number. ( A whole number and a fraction)
A.) The fifth one is A because the LCD of the fractions is 36.