standard_description: Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + bc)/bd.)
problem_activity: Problem 1
Fill in the blank to make the statement true.
$$\frac{3}{4}>\frac{3}{\square}$$
Problem 2
a.   Compare
$$5\over 6$$
and
$$5\over 8$$
. Use <, >, or = to record your comparison.
b.   Explain how you know your answer in Part A is correct. Draw a picture or a number line to support your reasoning.


aligns: no