| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.47 |
| Score | 0% | 69% |
What is \( \frac{1}{6} \) x \( \frac{2}{7} \)?
| \(\frac{1}{21}\) | |
| \(\frac{12}{35}\) | |
| \(\frac{1}{16}\) | |
| \(\frac{3}{56}\) |
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{1}{6} \) x \( \frac{2}{7} \) = \( \frac{1 x 2}{6 x 7} \) = \( \frac{2}{42} \) = \(\frac{1}{21}\)
This property states taht the order of addition or multiplication does not mater. For example, 2 + 5 and 5 + 2 are equivalent.
distributive |
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associative |
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commutative |
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PEDMAS |
The commutative property states that, when adding or multiplying numbers, the order in which they're added or multiplied does not matter. For example, 3 + 4 and 4 + 3 give the same result, as do 3 x 4 and 4 x 3.
What is the greatest common factor of 48 and 52?
| 4 | |
| 3 | |
| 39 | |
| 43 |
The factors of 48 are [1, 2, 3, 4, 6, 8, 12, 16, 24, 48] and the factors of 52 are [1, 2, 4, 13, 26, 52]. They share 3 factors [1, 2, 4] making 4 the greatest factor 48 and 52 have in common.
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 30% off." If Frank buys two shirts, each with a regular price of $47, how much money will he save?
| $14.10 | |
| $2.35 | |
| $4.70 | |
| $21.15 |
By buying two shirts, Frank will save $47 x \( \frac{30}{100} \) = \( \frac{$47 x 30}{100} \) = \( \frac{$1410}{100} \) = $14.10 on the second shirt.
Which of these numbers is a factor of 48?
| 38 | |
| 29 | |
| 12 | |
| 42 |
The factors of a number are all positive integers that divide evenly into the number. The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 48.