What does the denominator tell you?: How many equal parts the whole is divided into
What does the numerator tell you?: How many of those parts are being counted
Proper fraction: Numerator is smaller than denominator, like 3/5
Improper fraction: Numerator is equal to or larger than denominator, like 9/4
Mixed number: A whole number plus a fraction, like 2 1/4
Equivalent fractions: Different fractions with the same value
How to make an equivalent fraction: Multiply or divide top and bottom by the same number
Simplify 6/8: 3/4
Simplify 10/15: 2/3
Simplify 12/18: 2/3
Simplify 24/36: 2/3
Simplify 15/45: 1/3
Simplify 18/24: 3/4
Simplify 20/50: 2/5
Convert 7/4 to a mixed number: 1 3/4
Convert 11/3 to a mixed number: 3 2/3
Convert 2 1/2 to an improper fraction: 5/2
Convert 3 2/5 to an improper fraction: 17/5
Convert 1 3/4 to an improper fraction: 7/4
1/2 + 1/4: 3/4
1/3 + 1/6: 1/2
2/5 + 1/10: 1/2
3/8 + 1/4: 5/8
1/2 + 1/3: 5/6
3/4 + 2/3: 1 5/12
3/4 − 1/4: 1/2
5/6 − 1/3: 1/2
7/8 − 1/2: 3/8
2/3 − 1/4: 5/12
1 − 3/5: 2/5
2/3 × 3/4: 1/2
1/2 × 1/2: 1/4
3/5 × 5/6: 1/2
2/7 × 14: 4
1/3 of 12: 4
3/4 of 20: 15
2/5 of 25: 10
1/2 ÷ 1/4: 2
3/4 ÷ 3/8: 2
2/3 ÷ 4: 1/6
4 ÷ 1/2: 8
How to divide fractions: Multiply by the reciprocal of the second fraction
Reciprocal of 5/7: 7/5
Reciprocal of 4: 1/4
Common denominator: A shared multiple of the denominators, needed for adding and subtracting
Least common denominator of 1/4 and 1/6: 12
Least common denominator of 2/3 and 3/5: 15
Which is greater, 3/4 or 2/3?: 3/4
Which is greater, 5/8 or 3/5?: 5/8
Which is smaller, 1/3 or 2/7?: 2/7
Compare 4/9 and 1/2: 4/9 < 1/2
Order 1/2, 1/3, 1/4 from least to greatest: 1/4, 1/3, 1/2
Unit fractions get smaller as the denominator: Gets bigger
Benchmark fractions: 0, 1/2 and 1, used for comparing and estimating
Is 5/9 more or less than 1/2?: More
Is 3/8 more or less than 1/2?: Less
Fraction of a day that is 6 hours: 1/4
Fraction of an hour that is 20 minutes: 1/3
Fraction of a dollar that is a quarter: 1/4
Fraction as division: a/b means a ÷ b
1/0: Undefined; you cannot divide by zero
0/5: 0
Fraction bar also means: Divide
Fraction of a circle in a half turn: 1/2
Number line fraction: halfway between 0 and 1: 1/2
Complex fraction: A fraction with a fraction in the numerator or denominator

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