Add and Subtract (+/-) Fractions

Front

What is the process for adding fractions with different denominators?

Back

To add fractions with different denominators, first find a common denominator, convert each fraction to an equivalent fraction with that denominator, then add the numerators and keep the common denominator.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you subtract fractions?

Back

To subtract fractions, ensure they have a common denominator. If they don't, find a common denominator, convert the fractions, then subtract the numerators while keeping the common denominator.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a proper fraction, such as 2 1/2.

Tags

CCSS.3.NF.A.3C

Front

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

Back

To convert an improper fraction to a mixed number, divide the numerator by the denominator. The quotient becomes the whole number, and the remainder becomes the numerator of the proper fraction.

Front

What is the least common denominator (LCD)?

Back

The least common denominator (LCD) is the smallest multiple that two or more denominators share, used to add or subtract fractions.

Front

What is the result of subtracting a negative fraction from a positive fraction?

Back

Subtracting a negative fraction is equivalent to adding the positive value of that fraction.

Tags

CCSS.7.NS.A.1C

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide both the numerator and the denominator by their greatest common divisor (GCD).

Front

What is the greatest common divisor (GCD)?

Back

The greatest common divisor (GCD) is the largest number that divides two or more numbers without leaving a remainder.

Front

What is the rule for adding two negative fractions?

Back

When adding two negative fractions, add their absolute values and keep the result negative.

Tags

CCSS.7.NS.A.1C

Front

How do you handle mixed numbers in addition and subtraction?

Back

Convert mixed numbers to improper fractions before performing addition or subtraction.

Tags

CCSS.7.NS.A.1C