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Vocabulary
Subtracting fractions
Adding fractions
Decomposing Fractions
100

Name of the top number of a fraction.

Numerator

100

5/8 - 3/8

2/8

100

2/6 + 3/6

5/6

100

1/8 + 1/8 + 1/8

3/8

200

Name of the bottom number of a fraction.

Denominator

200

8/12 - 6/12

2/12

200

8/10 + 2/10

10/10 or 1

200

1/10 + 1/10 + 1/10 + 1/10

4/10

300

Has a numerator and a denominator.

Fraction

300

52/60 - 48/60

4/60

300

15/30 + 12/30

27/30

300

1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12

7/12

400

Ways to show your work when adding or subtracting fractions.

A Number line, area model, and equation.

400

63/70 - 38/70

25/70

400

82/120 + 29/120

111/120

400

1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12

9/12

500

A fraction with a numerator of 1.

Unit fraction

500

150/180 - 126/180

24/180

500

64/200 + 98/200

162/200

500

1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12 + 1/12

12/12 or 1