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FRACTIONS, DECIMALS AND PERCENTS

FRACTIONS, DECIMALS AND PERCENTS. A fraction can be used to represent part of a whole or part of a set. 3. three-fourths. 4. NUMERATOR. 1. 2. DENOMINATOR. one-half. two-halves. four-fourths. ___. _. 1. one-third. -. 3. 2. two-fifths. -. 5. Proper Fraction.

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FRACTIONS, DECIMALS AND PERCENTS

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  1. FRACTIONS, DECIMALS AND PERCENTS

  2. A fraction can be used to represent part of a whole or part of a set. 3 three-fourths 4

  3. NUMERATOR 1 2 DENOMINATOR one-half

  4. two-halves four-fourths

  5. ___ _ 1 one-third - 3 2 two-fifths - 5

  6. Proper Fraction • Numerator is less than the denominator 2 1 3 7 5 - - - 3 2 6 - - 9 7

  7. Improper Fraction • Numerator is greater than or equal to the denominator 6 3 5 9 7 - - - 6 2 - - 3 5 6

  8. Dissimilar Fractions • have different denominators 8 5 2 2 1 - - - 9 8 6 - - 2 7

  9. Similar Fractions • have same denominators 7 6 2 4 1 - - 7 - 7 - 7 7 - 7

  10. To change a decimal to percent: • Multiply it by 100. • Add the percent sign. Ex. 0.23 = 23 % 9.1 = 910 % 0.7 = 70 % 45.9 = 45.90 %

  11. Answer as fast as you can 1. 0.99 2. 0.172 3. 0.8 4. 1.20 5. 10.30

  12. To change a percent to decimal: • Divide it by 100. • Remove the percent sign. Ex. 34% = 0.34 5%= 0.05 1.6% = 0.016 0.6%= 0.006

  13. 9 % = TRY THESE: 0 8 % = - % = 2 8 % = 3 10 - 7 7 % =

  14. To change a decimal to fraction, find the fractional equivalence of the place value. Ex. 0.7 = 7/10 0.80= 800/100 or 4/5 1.3 = 1 3/10 12.789= 12 789/1000

  15. Try These: • 0.4 • 0.73 • 1.2 • 0.093 • 30.97

  16. To change a fraction to decimal, divide the numerator by the denominator. Ex. ½ = (1÷2) = 0.5 ¾ = 3÷4 = 0.75 7/10 = (7÷10) = 0.7 34/100 = (34 ÷ 100)= 0.34

  17. Answer as fast as you can 1. 2 9 2. 4 100 3. 3 10 • 5 20 5. 130 = 1000

  18. Be ready for the Classwork...

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