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Math Grade 2-3 Answer Key

Math: Fractions Numerator and Denominator

Name the top and bottom numbers in simple fractions

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Math: Fractions Numerator and Denominator

Name the top and bottom numbers in simple fractions

Math - Grade 2-3

Instructions: Read each problem carefully. Write the numerator and denominator when asked. Explain what the numbers mean using complete sentences.
  1. 1

    In the fraction 3/5, what is the numerator and what is the denominator?

    The numerator is the top number. The denominator is the bottom number.

    The numerator is 3, and the denominator is 5. The numerator tells how many parts are counted, and the denominator tells how many equal parts are in the whole.
  2. 2

    A circle is divided into 4 equal parts. One part is shaded. Write the fraction that shows the shaded part, then name the numerator and denominator.

    The shaded part is 1/4. The numerator is 1 because one part is shaded, and the denominator is 4 because the circle has 4 equal parts.
  3. 3

    In the fraction 2/3, what does the denominator tell you?

    Look at the bottom number in the fraction.

    The denominator is 3. It tells that the whole is divided into 3 equal parts.
  4. 4

    In the fraction 4/6, what does the numerator tell you?

    The numerator is 4. It tells that 4 equal parts are being counted.
  5. 5

    A rectangle is divided into 6 equal parts. Three parts are shaded. Write the fraction for the shaded parts.

    Count the shaded parts first, then count all the equal parts.

    The fraction for the shaded parts is 3/6. The numerator 3 shows the shaded parts, and the denominator 6 shows all the equal parts.
  6. 6

    Which number is the denominator in 5/8?

    The denominator is 8. It is the bottom number in the fraction.
  7. 7

    Which number is the numerator in 7/10?

    The numerator sits above the fraction bar.

    The numerator is 7. It is the top number in the fraction.
  8. 8

    A candy bar is split into 5 equal pieces. You eat 2 pieces. Write the fraction that shows the part you ate.

    You ate 2/5 of the candy bar. The numerator is 2 because you ate 2 pieces, and the denominator is 5 because there were 5 equal pieces in all.
  9. 9

    Complete the sentence: In 1/2, the numerator is _____ and the denominator is _____.

    Read the fraction from top to bottom.

    In 1/2, the numerator is 1 and the denominator is 2.
  10. 10

    A square is divided into 8 equal parts. Five parts are shaded. What is the denominator of the fraction for the shaded parts?

    The denominator is 8 because the square is divided into 8 equal parts in all.
  11. 11

    A garden has 6 equal rows. Four rows have flowers. Write the fraction for the rows with flowers.

    The total number of equal rows goes on the bottom.

    The fraction for the rows with flowers is 4/6. The numerator 4 shows the flower rows, and the denominator 6 shows all the rows.
  12. 12

    Look at the fraction 3/4. Choose the correct sentence: A. The whole has 3 equal parts and 4 are counted. B. The whole has 4 equal parts and 3 are counted.

    Sentence B is correct. In 3/4, the denominator 4 tells the whole has 4 equal parts, and the numerator 3 tells that 3 parts are counted.
  13. 13

    A set has 9 equal balls. Six balls are blue. Write the fraction that shows the blue balls.

    Use blue balls as the counted part.

    The fraction that shows the blue balls is 6/9. The numerator 6 shows the blue balls, and the denominator 9 shows all the balls.
  14. 14

    Write a fraction with a numerator of 2 and a denominator of 7.

    A fraction with a numerator of 2 and a denominator of 7 is 2/7.
  15. 15

    A pizza is cut into 8 equal slices. Three slices are eaten. What fraction of the pizza is eaten, and what does each number mean?

    The eaten slices are the parts being counted.

    The fraction eaten is 3/8. The numerator 3 means 3 slices are eaten, and the denominator 8 means the pizza has 8 equal slices in all.
LivePhysics™.com Math - Grade 2-3 - Answer Key