NF.A.1+Add+Subt+Like+Unlike

=Number and Operations - Fractions - Use equivalent fractions as a strategy to add and subtract fractions.=

CCSS.Math.Content.5.NF.A.1 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.)//
 * ===Online Support Sites:===
 * @http://www.internet4classrooms.com/common_core/add_subtract_fractions_unlike_denominators_including_number_operations_fractions_fifth_5th_grade_math_mathematics.htm
 * ===Online Practice:===
 * IXL:
 * [|Fractions and mixed numbers: Equivalent fractions (Fifth grade - L.2)]
 * [|Fractions and mixed numbers: Reduce fractions to lowest terms (Fifth grade - L.3)]
 * [|Fractions and mixed numbers: Convert between improper fractions and mixed numbers (Fifth grade - L.4)]
 * [|Add and subtract fractions: Add fractions with unlike denominators (Fifth grade - M.4)]
 * [|Add and subtract fractions: Subtract fractions with unlike denominators (Fifth grade - M.5)]
 * [|Add and subtract fractions: Add 3 or more fractions with unlike denominators (Fifth grade - M.7)]
 * [|Add and subtract fractions: Complete addition and subtraction sentences with fractions (Fifth grade - M.9)]
 * [|Add and subtract fractions: Inequalities with addition and subtraction of fractions (Fifth grade - M.10)]
 * [|Add and subtract fractions: Add mixed numbers with unlike denominators (Fifth grade - M.12)]
 * [|Add and subtract fractions: Subtract mixed numbers with unlike denominators (Fifth grade - M.13)]
 * [|Add and subtract fractions: Complete addition and subtraction sentences with mixed numbers (Fifth grade - M.15)]
 * [|Add and subtract fractions: Inequalities with addition and subtraction of mixed numbers (Fifth grade - M.16)]