When i add or subtract fractions first i must convert the denominators so they are common. then i can add or subtract the?

Numerators.

Remember you have to convert the numerators as well.

Example:-   2/3 + 1/6

LCD = 6

2/3 becomes 2/3 * 2/2  = 4/6

4/6 + 1/6 = 5/6.

i would say b) is your answer

sorry if im wrong

step-by-step explanation:

2, 2, 2 or -4, 20, 29

step-by-step explanation:

there is two ways you can do it.