Add and Subtract fractions and Mixed numbers

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1 \frac{5}{8}

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What is the number on the bottom of a fraction called?

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Denominator

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How many more gallons does Rebecca's new car hold than her old car if her old car holds 14 1/5 gallons and her new car holds 18 1/2 gallons?

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4 \frac{3}{10} gallons

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When adding fractions with like denominators, what happens to the denominators?

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The denominators stay the same.

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What is a mixed number?

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A mixed number is a whole number combined with a fraction.

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How do you add fractions with unlike denominators?

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Find a common denominator, convert the fractions, then add the numerators.

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What is the numerator in a fraction?

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The numerator is the number on the top of a fraction.

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What is the first step in subtracting fractions?

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Find a common denominator.

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