7th grade: Adding Fractions

Front

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

Back

Find a common denominator for the fractions.

Front

How do you find a common denominator for two fractions?

Back

List the multiples of each denominator and find the least common multiple (LCM).

Front

What is the formula for adding two fractions with the same denominator?

Back

If a/b and c/b are two fractions, then a/b + c/b = (a+c)/b.

Front

What is the formula for adding two fractions with different denominators?

Back

If a/b and c/d are two fractions, then a/b + c/d = (a*d + b*c) / (b*d).

Front

What do you do after finding a common denominator to add fractions?

Back

Convert each fraction to an equivalent fraction with the common denominator.

Front

What is an improper fraction?

Back

An improper fraction is a fraction where the numerator is greater than or equal to the denominator.

Front

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

Back

Divide the numerator by the denominator to get the whole number, and the remainder becomes the new numerator.

Front

What is the simplest form of a fraction?

Back

A fraction is in simplest form when the numerator and denominator have no common factors other than 1.

Front

How do you simplify a fraction?

Back

Divide both the numerator and denominator by their greatest common divisor (GCD).

Front

What is the result of adding 2/3 and 7/12?

Back

The result is 15/12, which can be simplified to 5/4 or 1 1/4.