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Pre Algebra - How to Multiply Fractions
Content Provider | WatchKnowLearn |
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Description | In this lesson, students learn to multiply fractions by multiplying across the numerators, and multiplying across the denominators. For example, to multiply 1/2 x 3/7, multiply across the numerators, 1 x 3 = 3, and multiply across the denominators, 2 x 7 = 14. So 1/2 x 3/7 = 3/14. Students also learn to cross-cancel when multiplying fractions. For example, to multiply 3/5 x 5/9, the 3 and 9 cross-cancel to 1 and 3,and the 5 and 5 cross-cancel to 1 and 1. Therefore, 3/5 x 5/9 can be rewritten as 1/1 x 1/3, and multiplying across the numerators and denominators, 1/1 x 1/3 = 1/3. |
Language | English |
Access Restriction | Open |
Rights License | Proprietary |
Subject Keyword | Fraction Multiplication Mathematics/Pre-Algebra/Fraction Multiplication k-12 homeschool homeschooling home school parents educational videos k12 preK-12 Pre-Algebra Mathematics |
Content Type | Video |
Educational Role | Student Teacher |
Educational Use | Self Learning Lecture |
Education Level | Class III Class IV Class V Class VI Class VII |
Pedagogy | Chalk-and-talk Lecture cum Demonstration |
Resource Type | Video Lecture |
Subject | Fractions Multiplication and Division |