| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.17 |
| Score | 0% | 63% |
What is \( \frac{3}{7} \) x \( \frac{4}{8} \)?
| \(\frac{1}{27}\) | |
| \(\frac{3}{14}\) | |
| \(\frac{2}{9}\) | |
| \(\frac{8}{49}\) |
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{3}{7} \) x \( \frac{4}{8} \) = \( \frac{3 x 4}{7 x 8} \) = \( \frac{12}{56} \) = \(\frac{3}{14}\)
The __________ is the greatest factor that divides two integers.
greatest common multiple |
|
greatest common factor |
|
absolute value |
|
least common multiple |
The greatest common factor (GCF) is the greatest factor that divides two integers.
The __________ is the smallest positive integer that is a multiple of two or more integers.
least common factor |
|
least common multiple |
|
absolute value |
|
greatest common factor |
The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more integers.
Solve 5 + (3 + 2) ÷ 2 x 5 - 32
| 1\(\frac{2}{7}\) | |
| 2\(\frac{1}{2}\) | |
| 4\(\frac{1}{2}\) | |
| 8\(\frac{1}{2}\) |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
5 + (3 + 2) ÷ 2 x 5 - 32
P: 5 + (5) ÷ 2 x 5 - 32
E: 5 + 5 ÷ 2 x 5 - 9
MD: 5 + \( \frac{5}{2} \) x 5 - 9
MD: 5 + \( \frac{25}{2} \) - 9
AS: \( \frac{10}{2} \) + \( \frac{25}{2} \) - 9
AS: \( \frac{35}{2} \) - 9
AS: \( \frac{35 - 18}{2} \)
\( \frac{17}{2} \)
8\(\frac{1}{2}\)
Which of the following is an improper fraction?
\({2 \over 5} \) |
|
\({a \over 5} \) |
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\({7 \over 5} \) |
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\(1 {2 \over 5} \) |
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.