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Adding and Subtracting Fractions with Pictures & Numbers By Kathy Woodard 2012

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Write with the same denominator: 1. 2. Write with the same denominator: 3. 4. 5.Simplify this expression:6. Put in descending order:

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Key Words Add put different things together: sum, total, in all, combined, earn money, increase Subtract take away, OR find how much is left after, OR comparing how much more/less: difference, how much more, take away, give away, spent, decrease, money off of the price Multiply put same-size things together: # of, groups of, area (length x width), doubled = x2, tripled = x3 Divide cut into same-size groups: how many groups, the line in a fraction says divide, per, Round finding what it is close to: about, estimate, approximately, closest to

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Add or Subtract? David measured 3/8 inch of rain Monday. He emptied the rain gauge and then measured 7/8 inch more rain on Tuesday. How much rain fell on both days combined?

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Add or Subtract? David measured 3/8 inch of rain Monday. He forgot to empty the rain gauge. By Tuesday night there was 7/8 inch rain in the rain gauge. How much rain fell on Tuesday?

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1. Add or Subtract? Jill and Sarah went panning for gold. Jill found 7/10 g of gold and Sarah found 6/10 g of gold. How much more gold did Jill find than Sarah?

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2. Add or Subtract? Jill took her 7/10 g gold to the goldsmith and had jewelry made. The jewelry used 3/10 g of gold. How much gold was left over?

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3. Add or Subtract? Hermione wants to use ribbon to make a border for her quilt. She has three pieces of ribbon: the first is 5/6 ft, the second is 4/6 ft, and the third is 3/6 ft. How long of a quilt border can she make?

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4. Add or Subtract? Before Thanksgiving dinner we had a whole pumpkin pie. We ate 5/9 of the pie. How much pie do we have left?

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When you add or subtract fractions they have to have the same denominators.

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Try Together

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5. Addition or Subtraction? Tia and Mark each bought a chocolate bar. Tia ate 2/3 of her candy bar, and Mark ate 1/6 of his candy bar. How much more did Tia eat than Mark?

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6. Addition or Subtraction?

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Jo has 2/3 of a yard of yarn and Kia has 1/4 of a yard. They need 1 yard for their project. Do they have enough? 7. Add or Subtract?

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8. Addition or Subtraction? Before Jeni started cooking she had 3/4 lb of chocolate chips. After she finished there was only 1/3 lb of chocolate chips left. How many pounds of chocolate chips did she use?

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9. Addition or Subtraction? Rita drank 1/6 cup of lemonade. Then she drank 1/2 cup of water. How much liquid did Rita drink?

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10. Addition or Subtraction?

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11. Add or Subtract?

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12. Your Turn: One of Mrs. Woodards cookie recipes calls for 1 3/4 cups of flour. The other recipe calls for 2 3/4 cups of flour. How much flour will she need to make both recipes?

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13. Dont forget to simplify: Mina

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14. Addition or Subtraction? Abby buys 5 1/2 pounds of apples. She uses 2 1/4 pounds to bake a pie. How many pounds does she have left?

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15. Addition or Subtraction? Tim mails two boxes of cookies to friends. One box weighs 1 3/4 pounds and the other weighs 2 2/3 pounds. What is the total weight of the two boxes?

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16. Addition or Subtraction? Paul is 6 ¼ feet tall. Kathy is 5 ¾ feet tall. How much taller is Paul than Kathy?

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Tutoring for Unit 7 Test. 1. Write the fraction 4/16 in simplest form.

Tutoring for Unit 7 Test. 1. Write the fraction 4/16 in simplest form.

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