5.3H Adding and Subtracting Fractions

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (part) and 'b' is the denominator (whole).

Front

What does it mean to add fractions?

Back

Adding fractions involves combining the parts represented by the fractions. To add fractions with different denominators, find a common denominator first.

Front

How do you find a common denominator for 1/4 and 2/5?

Back

The least common multiple (LCM) of the denominators (4 and 5) is 20. So, the common denominator is 20.

Front

What is the sum of 1/4 and 2/5?

Back

1/4 + 2/5 = 13/20.

Front

What does it mean to subtract fractions?

Back

Subtracting fractions involves taking away the parts represented by the fractions. Like addition, you need a common denominator for fractions with different denominators.

Front

How do you find a common denominator for 7/12 and 3/8?

Back

The least common multiple (LCM) of the denominators (12 and 8) is 24. So, the common denominator is 24.

Front

What is the difference between 7/12 and 3/8?

Back

7/12 - 3/8 = 5/24.

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numerator and denominator are different.

Front

Which fraction is equivalent to 3/4?

Back

15/20 is equivalent to 3/4.

Front

How do you convert a fraction to an equivalent fraction?

Back

To convert a fraction to an equivalent fraction, multiply or divide both the numerator and denominator by the same non-zero number.