| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.60 |
| Score | 0% | 72% |
What is \( \frac{4}{6} \) ÷ \( \frac{4}{5} \)?
| \(\frac{3}{20}\) | |
| \(\frac{1}{25}\) | |
| \(\frac{5}{6}\) | |
| \(\frac{1}{3}\) |
To divide fractions, invert the second fraction and then multiply:
\( \frac{4}{6} \) ÷ \( \frac{4}{5} \) = \( \frac{4}{6} \) x \( \frac{5}{4} \)
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{4}{6} \) x \( \frac{5}{4} \) = \( \frac{4 x 5}{6 x 4} \) = \( \frac{20}{24} \) = \(\frac{5}{6}\)
Which of the following is not a prime number?
2 |
|
7 |
|
5 |
|
9 |
A prime number is an integer greater than 1 that has no factors other than 1 and itself. Examples of prime numbers include 2, 3, 5, 7, and 11.
| 7.0 | |
| 3.0 | |
| 4.2 | |
| 1 |
1
What is the next number in this sequence: 1, 4, 7, 10, 13, __________ ?
| 22 | |
| 15 | |
| 16 | |
| 9 |
The equation for this sequence is:
an = an-1 + 3
where n is the term's order in the sequence, an is the value of the term, and an-1 is the value of the term before an. This makes the next number:
a6 = a5 + 3
a6 = 13 + 3
a6 = 16
Which of the following is a mixed number?
\(1 {2 \over 5} \) |
|
\({7 \over 5} \) |
|
\({a \over 5} \) |
|
\({5 \over 7} \) |
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.