Adding and Subtracting Fractions with Denominators of 10 and 100

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

Front

What does the denominator of a fraction represent?

Back

The denominator indicates how many equal parts the whole is divided into.

Front

What does the numerator of a fraction represent?

Back

The numerator shows how many parts of the whole are being considered.

Front

How do you add fractions with the same denominator?

Back

Add the numerators together and keep the same denominator.

Front

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

Back

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 both denominators.

Front

How do you convert a fraction to have a denominator of 100?

Back

Multiply the numerator and denominator by the same number to make the denominator 100.

Front

What is 6/10 converted to a fraction with a denominator of 100?

Back

6/10 = 60/100.

Front

What is the sum of 40/100 and 20/100?

Back

40/100 + 20/100 = 60/100.

Front

What is 75/100 + 6/100?

Back

75/100 + 6/100 = 81/100.