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Multiplying and dividing fractions review If your fractions are proper, then you can cross cancel That means you are reducing early ⅔•¹⁵/₁₆ 1 Once you have finished cross canceling, then all you do is multiply the top numbers together, then multiply the bottom numbers together. 1 2 • 15 3 16 5 8 5 8 You have a mixed number, you have to make it improper before you can start to cross cancel Once you have finished cross canceling, then all you do is multiply the top numbers together, then multiply the bottom numbers together. To make a fraction improper you multiply the denominator by the whole number, then add the numerator 1¾•⁸/₉ 1 7 •8 4 9 14 9 1 ⁵/₉ 2 You can’t leave your final answer improper. You need to divide in order to make it a mixed number You have to fix fraction division questions. The phrase that will help you to divide is copy, change flip ⅘ ÷ ⁸/₁₅ Now you can cross cancel Now you can multiply the top numbers together, and multiply the bottom numbers together. 1 1 4 • 15 5 8 3 2 1½ 3 2 REMEMBER!!!!!! You can’t leave your final answer improper. You need to divide in order to make it a mixed number You have a mixed number, you have to make it improper before you can start to divide Don’t forget to copy, change flip None of the numbers can cross cancel, so all you have to do is multiply the top numbers together and the bottom numbers together 2⅞ ÷ 4 23 • 1 8 4 23 32 23 8 ÷ 4 1