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# Power point pass now

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### Power point pass now

1. 1. How did you do on your assessment? These 5 simple questions can tell us a lot about you, so let’s check them out!
2. 2. How did you do on question number one <ul><li>Subtract: 7/8 – 1/4 = (a) 5/8 </li></ul><ul><li>How did we get this? </li></ul><ul><li>There are a couple of rules for adding and subtracting fractions: </li></ul><ul><li>What you do to the bottom you must do to the top. </li></ul>
3. 3. More about fractions <ul><li>When adding or subtracting, you should always look for the common denominator. </li></ul><ul><li>So lets take a second look: </li></ul><ul><li>7 /8 </li></ul><ul><li>- 1/4 which one is your common denominator? </li></ul><ul><li>(8) is your common denominator, because out of the two denominators (8) is the only denominator that can have a number go into it. </li></ul>
4. 4. Denominators <ul><li>What do we mean? Looking at your two denominators: (4) and (8), (8) is the largest. (4) can go into (8) two times, but (8) cannot go into (4) making (8) your common denominator. </li></ul><ul><li>1 × 2 =2 what you do to the bottom </li></ul><ul><li>4 × 2 =8 you do to the top </li></ul><ul><li>now you have 2/8 – 7/8 = 5/8 </li></ul>
5. 5. How did you do on question number two <ul><li>Question two is not much different than number one, except now we are adding. </li></ul><ul><li>You are still looking for the common denominator in all (3) fractions. So take some time to figure what the most common denominator will be for: </li></ul><ul><li>3/4 + 7/8 + 1/4 </li></ul>
6. 6. More common denominators <ul><li>What did you get? </li></ul><ul><li>These are our converted fractions: </li></ul><ul><li>6/8 +2/8+7/8 as you can see, (8) is the common denominator </li></ul><ul><li>You should have gotten 6/8 from ¾ </li></ul><ul><li>You should have gotten 2/8 from ¼ </li></ul><ul><li>And 7/8 will remain the same! Now lets add. </li></ul>