| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.22 |
| Score | 0% | 64% |
| 5.4 | |
| 1 | |
| 2.5 | |
| 3.2 |
1
The __________ is the smallest positive integer that is a multiple of two or more integers.
greatest common factor |
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absolute value |
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least common factor |
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least common multiple |
The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more integers.
The __________ is the greatest factor that divides two integers.
greatest common factor |
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absolute value |
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least common multiple |
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greatest common multiple |
The greatest common factor (GCF) is the greatest factor that divides two integers.
Which of the following is a mixed number?
\({5 \over 7} \) |
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\(1 {2 \over 5} \) |
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\({a \over 5} \) |
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\({7 \over 5} \) |
A rational number (or fraction) is represented as a ratio between two integers, a and b, and has the form \({a \over b}\) where a is the numerator and b is the denominator. An improper fraction (\({5 \over 3} \)) has a numerator with a greater absolute value than the denominator and can be converted into a mixed number (\(1 {2 \over 3} \)) which has a whole number part and a fractional part.
A bread recipe calls for 2\(\frac{1}{2}\) cups of flour. If you only have \(\frac{1}{2}\) cup, how much more flour is needed?
| 3\(\frac{1}{8}\) cups | |
| 2 cups | |
| 1\(\frac{5}{8}\) cups | |
| \(\frac{1}{2}\) cups |
The amount of flour you need is (2\(\frac{1}{2}\) - \(\frac{1}{2}\)) cups. Rewrite the quantities so they share a common denominator and subtract:
(\( \frac{20}{8} \) - \( \frac{4}{8} \)) cups
\( \frac{16}{8} \) cups
2 cups