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Published byAbel Parrish Modified over 9 years ago
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Created by Leslie Fenton
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Make sure the denominators are the same. If the denominators are not the same, then rewrite the fractions using a common denominator. The new fractions should be equivalent to the original fraction. Compare the numerators.
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One way to find a common denominator is to multiply the two original denominators. 5 6 3 4 6 x 4 = 24 24 x 4 20 x 6 18 20 > 18 >
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Another way to compare fractions is to find the LCM of both denominators. LCM: Least Common Multiple (the one number both denominators can divide into with no remainder) Use the LCM as the new denominator in the equivalent fractions. 7 12 5 9 9, 18, 27, 36, 45 12, 24, 36, 48, 60 36 x 4 20 x 3 21 20 < 21 <
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Find the LCM of the denominators. Use the LCM to write equivalent fractions. Put the fractions in order using the numerators.
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321 8 5 4 8, 16, 24, 32, 40, 48 5, 10, 15, 20, 25, 30, 35, 40 4, 8, 12, 16, 20, 24, 28, 32, 36, 40 40 x 5 15 x 8 16 x 10 10 1/4 < 3/8 < 2/5
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Use a visual picture to compare a fraction to what you already know You know where zero, one-half, and one are on a number line You are also familiar with where one-fourth and three-fourths are on the number line. Based on a visual picture of a fraction, place it on a number line.
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Fractions are always parts of a whole Picture a whole: Picture what you already know: Picture the given fraction as compared to what you already know: = 1/2 1/5 … one is less than half of five… so 1/5 would look smaller than the ½ piece
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Fractions are always parts of a whole Picture a whole: Picture what you already know: Picture the given fraction as compared to what you already know: = 1/2 1/5 … one is less than half of five… so 1/5 would look smaller than the ½ piece You can do this… it just takes practice. Our brains are powerful tools we can train to use to our advantage.
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Fraction Faction Cards Pairs Fraction Faction Activity 1-21 Packet provided
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