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Dividing fractions using models makes this tricky topic easier to visualize. In this post are 3 dividing fractions by fractions using models examples, the connection to the keep, change, flip standard algorithm and videos explaining the examples.
Prealgebra. Module 4: Fractions. Using Models to Represent Fractions and Mixed Numbers. Learning Outcomes. Write fractions that represent portions of objects. Use fraction circles to make wholes given. Use models to visualize improper fractions and mixed numbers. Representing Parts of a Whole as Fractions. Andy and Bobby love pizza.
Learning Outcomes. Write fractions that represent portions of objects. Identify the numerator and the denominator of a fraction. Use fraction circles to make wholes given. Use models to visualize improper fractions and mixed numbers.
We know from the multiplication model that the product of 2/3 and another factor (the quotient) defines an area equivalent in size to 1/4. To find the quotient, we need to move the top part of the purple area so that it’s the same height as the 2/3 factor.
When it comes to developing numeracy, the best visual models are scale models. Fraction models of 1/4 plus 2/4 and 3/5 minus 2/5. A scale model is one that accurately represents the size of the number. So a scale model of ⅔ is the same size as a model of 4/6. And a scale model of ⅔ is twice as big as a scale model of ⅓.
“This time, divide 3/4 by 1/8. Let’s place as many 1/8 strips as we can to match the 3/4 strip.” Model it and then walk around to help students who may need support.
2 Μαΐ 2022 · A fraction is a way to represent parts of a whole. The denominator b b represents the number of equal parts the whole has been divided into, and the numerator a a represents how many parts are included. The denominator, b b, cannot equal zero because division by zero is undefined.
