Subtracting Rational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Tags

CCSS.5.NBT.A.2

Front

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

Back

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

Tags

CCSS.7.NS.A.1C

Front

What is the result of subtracting two rational numbers?

Back

The result of subtracting two rational numbers is another rational number.

Tags

CCSS.7.NS.A.1C

Front

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

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

Front

What is the first step in subtracting fractions with different denominators?

Back

The first step is to find a common denominator for both fractions.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you find a common denominator for two fractions?

Back

To find a common denominator, determine the least common multiple (LCM) of the denominators.

Front

What is the process for subtracting fractions?

Back

To subtract fractions, convert them to have a common denominator, subtract the numerators, and keep the common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the result of -14 - (-8)?

Back

The result is -6.

Tags

CCSS.7.NS.A.1C

Front

How do you handle mixed numbers in subtraction?

Back

Convert mixed numbers to improper fractions before performing the subtraction.

Tags

CCSS.7.NS.A.1C

Front

What is the result of -5 1/4 + 3 2/5?

Back

The result is -1 17/20.

Tags

CCSS.7.NS.A.1C