Adding Fractions with Denominator of 10 or 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.

Add the fractions!

• 8/10

• 86/100

• 80/100

• 6/10

Add the Fractions!

• 27/100

• 37/10

• 37/100

• 27/10

Add the Fractions!

• 52/100

• 5/10

• 12/100

• 2/10

Add the Fractions!

• 75/10

• 75/100

• 65/100

• 60/100

What equation matches the image above?

• 80/100 + 1/10 =

• 90/100

• 8/10 + 10/100 =

• 70/100

Add the fractions!

• 70/100

• 70/10

• 6/10

• 60/100

We DO NOT add or subtract the _____________ when doing addition or subtraction with fractions.

• numerators

• denominators

• nouns

• addition signs