# In your Math Journals, answer these review problems - PowerPoint PPT Presentation

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### In your Math Journals, answer these review problems Write in simplest form: 3/9 4/12 5/15 6/36 4/20 Add or Subtract and put in simplest form: 2/7 + 3/7 – PowerPoint PPT presentation

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1
problems
• Write in simplest form
• 3/9
• 4/12
• 5/15
• 6/36
• 4/20
• Add or Subtract and put in simplest form
• 2/7 3/7
• 4/8 2/8
• 5/9 2/9
• 6/12 3/12

2
Mixed Numbers
• By Mr. Bales

3
Objective
• By the end of this lesson, you will be able to
write mixed numbers and improper fractions.
• Standard 3 NS3.2 - Students will add and subtract
simple fractions

4
• Noah is selling pies at a bake sale. Each pie has
5 slices. Each slice is sold separately. There
are 7 slices left. What fraction of the pies is
left?

5
Mixed Number vs. Improper Fraction
• A mixed number has a whole number part and a
fraction part.
• An improper fraction has a numerator that is
greater than its denominator.

Mixed Numbers 1 1 2 3 5 5 2 4 6 Improper Fractions 3 11 23 2 4 6
6
Teach
• Draw two pizzas on your whiteboard with 5 pieces
in each pizza.
• Noah has 7 pieces left. So, color in 7 pieces
total using both of the pizzas.
• Simply count the wholes and the parts.
• You should have 1 whole pizza colored in, plus 2
pieces of the other
• Answer 1 2 pizza left over
• 5

7
Mixed Number to Improper Fraction
• Write 1 3 as an improper fraction.
• 8
• 1 3 1 3
• 8 8
• 8 3
• 8 8
• 11
• 8

Write the mixed number as the sum of a whole and
part
Write the whole number as a fraction and then,
8
Changing a Mixed Number into an Improper Fraction
• Second, you will multiply the whole number by the
denominator.
• 2 3
• 4
• Sometimes, you will be asked to or be forced to
make a mixed number an improper fraction.
• Heres how you do it
• First, breathe!!

2 4 8
Next, you add the numerator to what you just
multiplied.
8 3 11
Last, you put that new number over the same
denominator from the mixed number
11 4
9
Improper Fraction to a Mixed Number
• To turn an improper fraction to a mixed number,
you
• Simply divide the denominator by the numerator.
This will give you a whole number.
• Then, you subtract the numerator by having you
have left over from the division.
• Last, put this fraction over the same denominator
in the improper fraction.
• An improper fraction is a fraction where the
numerator is larger than the denominator.
• Example
• 14
• 3

10
Bales Bucks!!
• Change improper fraction to mixed number.
• 17/5
• 65/11
• 72/7
• 86/9
• 44/6
• Change mixed number into improper fraction.
• 2 5
• 6
• 4 7
• 9
• 5 6
• 11
• 8 4
• 7

11
Tim and Moby?
12
Assignment
• Page 540-541 - s 12 - 24
• Get them all correct, No Math Homework