5th Grade - Adding & 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 the numerator in a fraction represent?

Back

The numerator is the top number in a fraction and represents 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 in a fraction and represents 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. 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. Example: 3/5 - 1/5 = (3-1)/5 = 2/5.

Front

What is the first step to add fractions with different denominators?

Back

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

Front

What is a common denominator?

Back

A common denominator is a number that is a multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

Front

How do you find the least common denominator (LCD) of two fractions?

Back

To find the least common denominator, list the multiples of each denominator and find the smallest multiple they share.

Front

What is the least common denominator of 1/3 and 1/4?

Back

The least common denominator of 1/3 and 1/4 is 12.

Front

What must you have to add and subtract fractions?

Back

You must have common denominators to add and subtract fractions.