Brooke-lyn & Carlie
Numerators & Denominators
Subtraction: Make sure each fraction have the same denominators, using any method you like, now just subtract numerator by numerator and denominator by denominator.
Addition: Like subtraction make the denominators the same, with whatever method you prefer then just add across (numerator by numerator and denominator by denominator).
Division: When diving fractions all you have to do is reverse the second fraction so the numerator is at the bottom and the denominator is at the top. Then you just multiply the first fraction's numerator by the second fraction's numerator, and the same for the denominators.
Multiplication: For multiplying fractions first you have to simplify the fractions if not in lowest terms, then multiply the numerators of the fractions to get the new numerator and finally multiply across (numerator to numerator, denominator to denominator).
It's a piece of cake!
This pizza represents 7/8 (7 slices) because 1/8 (1 slice) is gone.
Measuring cups and cooking in general require fractions, like you would need 1/2 of a cup of milk into your recipe.
When you're building you usually measure what you are going to build beforehand, all measuring tape or tools have fractions, like 1 foot and 1/2.
This picture shows the basic fraction tiles that we use to help us solve questions.
This is a visual example of dividing fractions, just switch, multiply and simply.
The fraction tiles here show that 1/2, 2/4, 3/6, 4,8 and 5/10 are equal.
Least Common Denominator
Fraction Word Problems
Mrs. Tyrer owns a store and sells chocolate bars for $6. She had some complaints about her prices being too high so she said from now on the chocolate bars would be 1/3 of the price cheaper. How much do her chocolate bars cost now?
Carlie and Brooke-lyn went to get pizza. They ordered a large pizza which has 10 pieces of pizza in it. They both ate 2/5 of the pizza. Then Carlie's dog got at the pizza while Carlie and Brooke-lyn weren't paying attention. The dog ate 2/10 of the pizza. How much pizza is left in the pizza box?
A cookie recipe says to put in 1 and 1/3 of a cup of water. This only makes 10 cookies. Ally wants 30 cookies. How much water will she need?
For Noah's birthday he got a really nice cake shaped like a scooter. If Noah and Matt ate 4/7 of the cake and the next day Noah's dad ate 1/2 of what was left. How many slices of cake are left?
Improper Fractions & Mixed Numbers
A mixed number is a whole number and a proper fraction combined together, for example: 3 1/3.