Operations with Signed Fractions--Should be able to do these WITHOUT a calculator.[br][br]For video explanation, see [br][url]https://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-multiplying-fractions/v/multiplying-fractions-and-whole-numbers[/url],[br][url]https://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-dividing-fractions/v/fractions-as-division[/url], and[br][url]https://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-add-sub-fractions/v/adding-fractions--ex-1[/url] .[br][br]For a refresher on adding and subtracting with signed numbers, see[br][url]https://www.khanacademy.org/math/arithmetic/absolute-value/adding_subtracting_negatives/v/adding-integers-with-different-signs[/url][br][br]For a refresher on multiplying and dividing with signed number see[br][url]https://www.khanacademy.org/math/arithmetic/absolute-value/mult_div_negatives/v/multiplying-positive-and-negative-numbers[/url]