Presentation is loading. Please wait.

Presentation is loading. Please wait.

HOW TO COMPARE FRACTIONS

Similar presentations


Presentation on theme: "HOW TO COMPARE FRACTIONS"— Presentation transcript:

1 HOW TO COMPARE FRACTIONS
Introducing: common denominator least common denominator like fractions unlike fractions.

2 Compare Fractions 1 The fractions 3/4 and 2/4 have the same denominator. Fractions with the same denominators are like fractions.

3 Compare Fractions 2 If denominators are the same, the fraction with the larger numerator is larger. So 3/4 is larger than 2/4 .

4 Compare Fractions 3 9/16 and 7/16 are like fractions. The numerator 9 in 9/16 is larger than the numerator 7 in 7/16, making 9/16 larger than 7/16 .

5 Compare Fractions 4 Same NUMERATOR
The fractions 2/3 and 2/5 have the same numerator. The denominator 3 in the fraction 2/3 means that the unit has less parts, making the parts larger. Therefore, 2/3 is larger than 2/5 .

6 Compare Fractions 5 >
The smaller the denominator the larger the fraction, WHEN THE NUMERATOR IS THE SAME!

7 Compare Fractions 6 4 X 5 = 20 Use Cross-Multiplication to compare fractions with unlike numerators AND unlike denominators.

8 Compare Fractions 6 4 X 5 = 20 3 X 8 = 24
Use Cross-Multiplication to compare fractions with unlike numerators AND unlike denominators.

9 Compare Fractions 6 4 X 5 = 20 3 X 8 = 24

10 Compare Fractions 7 The idea of common denominator can be used to compare unlike fractions such as 3/4 and 5/8 . You can rename one or both unlike fractions so that they will have like denominators. The denominator you will use is 8 because 8 is the smallest number that both denominators 4 and 8 will divide into. You can then rename 3/4 as 6/8 so that both fractions will have a common denominator 8. You can then compare the numerators of 6/8 and 5/8 .

11 Compare Fractions 13 Since the numerators are the same in 3/5 and 3/4 you can compare the fractions without finding the common denominator by looking at the denominators. Because the smaller the denominator the larger the fraction, 3/4 is larger than 3/5 .

12 Compare Fractions 16 5/8 is larger. It takes practice, but being able to estimate by visualizing the fraction (number sense) will help you to understand fractions better.


Download ppt "HOW TO COMPARE FRACTIONS"

Similar presentations


Ads by Google