Answer:
D
Step-by-step explanation:
If two fractions have the same denominators, then just simply add up the numerators together and keep the denominator.
Examples:

A.
Because in mathematics, a geometric progression, also known as a geometric sequence, is a sequence of non-zero numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio.
Given that m∠abc=70° and m∠bcd=110°. Is it possible (consider all cases): Line AB intersects line CD? Yes, and the answer will be 180° so yeaaa, the statement is possible to intersect to AB and to the line CD.
Step-by-step explanation:
#CarryOnLearning
That's true.
That will make the thing a third of its original size.