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- 1. Grade 4 Math Fractions
- 2. Our lessons today… <ul><li>Adding Fractions </li></ul><ul><li>Subtracting Fractions </li></ul><ul><li>Multiplying Fractions </li></ul>
- 4. Adding Fractions <ul><li>There are 3 Simple Steps to add fractions: </li></ul><ul><li>Step 1: Make sure the bottom numbers (the denominators) are the same </li></ul><ul><li>Step 2: Add the top numbers (the numerators). Put the answer over the same denominator. </li></ul><ul><li>Step 3: Simplify the fraction (if needed). </li></ul>
- 6. Subtracting Fractions <ul><li>There are 3 simple steps to subtract fractions </li></ul><ul><li>Step 1. Make sure the bottom numbers (the denominators) are the same </li></ul><ul><li>Step 2. Subtract the top numbers (the numerators). Put the answer over the same denominator. </li></ul><ul><li>Step 3. Simplify the fraction. </li></ul>
- 9. Multiplying Fractions <ul><li>One of the biggest mistakes students make when multiplying fractions is that they cross-multiply! </li></ul>
- 10. The trick is…. <ul><li>Students…remember to multiply ACROSS! </li></ul>
- 11. Some Questions to work on. <ul><li>1. How many minutes in 1/2 an hour? </li></ul><ul><li>2. How many minutes in 1/4 of an hour? </li></ul><ul><li>3. What is 1/2 of 12? </li></ul><ul><li>4. What is 1/2 of 1/4 </li></ul><ul><li>5. Write a fraction larger than 1/2 but smaller than 1 </li></ul>

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