Adding and Subtracting Fractions with Denominator 10 and 100

5/10 + 1/10 = ?

• 10/10

• 6

• 3/10

• 6/10

To add or subtract fractions you must have

• Common numerators

• Common denominators

• Common multiples

• common factors

If we have common denominators and we want to add or subtract them we need to

• add/subtract the numerator and slide over the denominator.

• add/subtract the numerator and add/subtract the denominator.

What is the denominator?

• the bottom number

• a fraction that is equal to another fraction

• the top number

• a fraction with a whole number

Add the Fractions!

• 27/100

• 37/10

• 37/100

• 27/10

Add the Fractions!

• 75/10

• 75/100

• 65/100

• 60/100

Add the Fractions!

• 52/100

• 5/10

• 12/100

• 2/10

The bottom number is called the __________.

• numerator

• denominator

5/10+4/10

• 10/10

• 9/10

• 8/10

• 7/10

23/100 + 28/100

• 51/100

• 41/100

• 60/100

• 75/100