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What are “like terms”? why can we only add like terms?

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.