1. Fractions
By: Rachel Christians

2. Fraction Terms Part-whole Quotient Ratio
Ann has 3 balls. Bob has 2 balls. How many balls do they have altogether?
Quotient
Ratio

3. PART-WHOLE
Region
The region is the whole unit and the parts are congruent or the same
shape and size. Some types of regions include circles, rectangles, and triangles.

4. PART-WHOLE
Length
Any unit of length can be partitioned into fractional parts of equal length.

5. Set A set of objects viewed as a whole
PART-WHOLE
Set
A set of objects viewed as a whole

6. PART-WHOLE
Area
Parts of a whole must be equal in area but not necessarily congruent

7. Partitioning Separating a whole unit into equal parts
PART-WHOLE
Partitioning
Separating a whole unit into equal parts

8. Fractions
Halves
Thirds
Fourths

9. Combining Fractions
Counting

10. Fractions
Symbols

11. Fractions
What do they look like

12. Ordering (Which is bigger or smaller?)
Fractions
Ordering (Which is bigger or smaller?)

13. Fractions
Equivalent or the Same

14. Adding Fractions
Make sure the denominators are the same. The denominator is the bottom number of the fraction. For example in ¼ the denominator would be 4, in ½ it would be 2.
If the bottom numbers of the fractions are not the same, the easiest way to get a common denominator is to multiply the numbers together.
So in the example above, you multiply 2 x 4 and you get 8. Multiply the top number by the same number you multiply the bottom by. So the 1 in ½ would be multiplied by four (so that the bottom equals 8), and the 1 in ¼ will be multiplied by 2 (after all 4 x 2 does equal 8).
Add the fractions together. When you add the fractions together, the bottom number should stay the same: you only add together the two top numbers. So with the previous example 2/8 + 4/8 would end up being 6/8, (or ¾ if you simplify).
If you end up with a number larger than the bottom you can convert to an improper fraction, but it's easier to just leave it in the form of a fraction!

15. Subtracting Fractions
Find a common multiple between the two denominators. For example, to subtract 4/5 - 7/10, both denominators would need to be 10. (You could use 30, but this is larger than needed.)
Take the first fraction's original denominator and multiply it by the number needed to make it into the common denominator. So in this case, multiply 5 by 2 to get 10.
Multiply the first fraction's numerator (top number) by the same number you just used to multiply the denominator. For 3/5, since you multiplied the 5 by 2, you need to multiply the 4 by 2.

16. Fractions Links and Games