Intro to Fractions/Adding & Subtracting Fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole. It consists of a numerator (top number) and a denominator (bottom number). For example, 1/2 means one part out of two equal parts.

Front

What does the numerator in a fraction represent?

Back

The numerator is the top number of a fraction and indicates how many parts of the whole are being considered.

Front

What does the denominator in a fraction represent?

Back

The denominator is the bottom number of a fraction and indicates the total number of equal parts the whole is divided into.

Front

How do you add fractions with the same denominator?

Back

To add fractions with the same denominator, keep the denominator the same and add the numerators. For example, 1/4 + 2/4 = (1+2)/4 = 3/4.

Front

How do you subtract fractions with the same denominator?

Back

To subtract fractions with the same denominator, keep the denominator the same and subtract the numerators. For example, 3/5 - 1/5 = (3-1)/5 = 2/5.

Front

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

Back

The first step is to find a common denominator, which is a number that both denominators can divide into evenly.

Front

What is the Lowest Common Denominator (LCD)?

Back

The Lowest Common Denominator (LCD) is the smallest multiple that two or more denominators share. It is used to add or subtract fractions with different denominators.

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 that result over the original denominator. For example, 2 1/3 = (2*3 + 1)/3 = 7/3.

Front

What is the process to compare two fractions?

Back

To compare two fractions, you can find a common denominator or convert them to decimals. Then, you can see which is larger or if they are equal.

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide both the numerator and the denominator by their greatest common factor (GCF). For example, 4/8 simplifies to 1/2.