Fractions A Fraction is a part of a whole A numerator B denominator Numerator o is the top number of a fraction o it tells you how many parts of a whole you have accounted for Denominator o is the bottom number of a fraction o it tells you how many parts you have altogether (in a proper fraction the numerator should be equal to or less than the denominator)
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Fractions
A Fraction is a part of a whole
A numerator
B denominator
Numerator
o is t he top number of a f r ac t i on
o i t te l ls you how many par ts o f a whole you have accounted f o r
Denominator
o is t h e bot tom number o f a f rac t ion
o i t te l ls you how many par ts you have al together
(in a proper f rac t i on the numerator should be equal to or less than the
denominator)
f i t - > \ I4
Name Date
H ractions of a Set (1)
Write the fraction for the shaded part of each set.
1. 2.
Shade each fractional part.
4. Shade f .
7. Shade 10"
A A A A A
Write each fraction.
10. seven eighths _
13. one third
A A A
5. Shade
8. Shade
• • • • •
11. one half
14. two sixths
6. Shade ~.
9. Shade 2'
12. three tenths
15. two fifths
Grade 5 Use with Unit 4, Activity 2. 5 9
Name Date
F ractions of a Region
Part of each region is shaded. Write a fraction for it.
1. 2.
4. 5. 6.
i
i
15.
i
16. Write your answers for problems 2, 3, 4, 5, 9, and 15.
Now write them in order from least to greatest.
Grade 5 Use with Unit 4, Activity 1.
Name Date
^Represent ing Fractions
Divide each figure. Shade it to show the fraction.
Comparing Fractions
1. You can use equivalent fractions to compare two or more fractions with different denominators.
Example: which is greater 2 or £ ? 4 o
Find the equivalent fractions to make it easier.
2 x 3 = a 4 1 2 3 4
sL is greater than —
A 4 6 6 12
2. If the fractions have the same numerator, then the fraction with the greater denominator is less.
2 2 Example: 12 4
12 is bigger than 4, therefore, g is less than 2 12 4
3. You can also use a benchmark to compare fractions. Think of closer to 1 or closer to 0. i 9
8 10 The further apart the numerator and denominator are the smaller the fraction is.
The closer the numerator and denominator are the bigger the fraction is.
I is close to 0
- is less thanS
is close to a whole - i s less than§.
£ 8 10 10
0
1. Find a fraction that is close to zero. 2. Find a fraction that is close to one. 3. Find a fraction that is close to one half
Quick R e v i e w
j of the circle is shaded.
| of the circle is shaded.
9 of the circle is shaded.
12 of the circle is shaded.
j ' I ' f ' and name the same amount. They are equivalent fractions.
There are patterns in the equivalent fractions. JL JL JL ^ — The numerators are multiples of the least numerator, 1. 3 6 9 12 — The denominators are multiples of the least denominator, 3.
> You can multiply or divide the numerator and the denominator of a fraction by the same number to find equivalent fractions.
82 Reteaching For use with MathQuest 6, pages 368 and 369 MathQuest 6 TRB
Name Date
F ractions of a Set (2)
Draw a picture to solve each problem.
1. Vito has 16 marbles. One half of the 2. Betty has 18 coins. One third of the marbles are red. How many red coins are dimes. How many dimes marbles does he have? does she have?
3. Jeff has 15 books. Two fifths of the books are nonfiction. How many nonfiction books does he have?
4. Marti has 20 pencils. Seven tenths of the pencils have erasers. How many pencils have erasers?
5. Lari has 12 pets. Two thirds of her pets are fish. How many fish does she have?
6. Jerod has 16 videos. One quarter of his videos are on a shelf. How many videos are on the shelf?
7. Toria bought 24 cans of orange juice. Five sixths of the cans of orange juice contain calcium. How many cans do not contain calcium?