How do you subtract a negative number from a positive number?

Subtracting a negative number is the same as adding its positive counterpart. For example, $$5 - (-3) = 5 + 3 = 8$$ .

What is the formula for finding the average of a set of numbers?

The average is found by adding all the numbers together and dividing by the count of numbers. For example, the average of 2, 4, and 6 is $$\frac{2 + 4 + 6}{3} = \frac{12}{3} = 4$$ .

How do you multiply fractions?

To multiply fractions, multiply the numerators together and the denominators together. For example, $$\frac{2}{3} \times \frac{3}{4} = \frac{2 \times 3}{3 \times 4} = \frac{6}{12} = \frac{1}{2}$$ .

What is the difference between a proper fraction and an improper fraction?

A proper fraction has a numerator smaller than its denominator (e.g., $$\frac{3}{4}$$ ), while an improper fraction has a numerator larger than or equal to its denominator (e.g., $$\frac{5}{4}$$ ).

How do you convert a mixed number to an improper fraction?

To convert a mixed number to an improper fraction, multiply the whole number by the denominator and add the numerator. For example, $$2 \frac{1}{3} = \frac{2 \times 3 + 1}{3} = \frac{7}{3}$$ .

What is the least common multiple (LCM)?

The least common multiple of two or more numbers is the smallest number that is a multiple of each of the numbers. For example, the LCM of 4 and 5 is 20.

How do you divide fractions?

To divide fractions, multiply by the reciprocal of the divisor. For example, $$\frac{2}{3} \div \frac{4}{5} = \frac{2}{3} \times \frac{5}{4} = \frac{10}{12} = \frac{5}{6}$$ .

Operations with Rational Numbers Review Flashcards

Student preview

14 questions

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1.

FLASHCARD QUESTION

Front

What is a rational number?

Back

2.

FLASHCARD QUESTION

Front

How do you find the difference in elevation between two points?

Back

3.

FLASHCARD QUESTION

Front

What is a terminating decimal?

Back

A terminating decimal is a decimal that has a finite number of digits after the decimal point. For example, 0.75 is a terminating decimal.

4.

FLASHCARD QUESTION

Front

Which fractions terminate when expressed as decimals?

Back

5.

FLASHCARD QUESTION

Front

What is the process to convert a fraction to a decimal?

Back

6.

FLASHCARD QUESTION

Front

How do you add rational numbers with different denominators?

Back

7.

FLASHCARD QUESTION

Front

What is the absolute value of a number?

Back

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