
All Things Fractions
Presentation
•
Mathematics
•
11th Grade
•
Medium
+19
Standards-aligned
Tom Giles
Used 4+ times
FREE Resource
18 Slides • 37 Questions
1
Objective: Understand and successfully complete calculations with equivalent fractions
Dr. Tom Giles
2
Multiple Choice
What fraction of the rectangle is shaded?
43
41
31
34
3
a fraction has a NUMERATOR and a DENOMINATOR
The small piece
The whole thing
4
Multiple Choice
What is the denominator?
53
3
5
5
Multiple Choice
In which problem is the numerator greater than 5?
53
4
37
81
6
Express each piece as a fraction
=
=
=
7
Fill in the Blanks
Write a fraction that represents the pink part of the circle.
Type answer...
8
Match
Match the fraction with the correct circle.
1/5
1/4
1/2
1/3
3/4
1/5
1/4
1/2
1/3
3/4
9
represent the SAME AMOUNT of the whole thing
What can we do to the first fraction to make it equal to the second fraction?
10
11
Fill in the Blanks
Rewrite the given fractions as equivalent fractions given the indicated denominator.
73=21?
12
Fill in the Blanks
Rewrite the given fractions as equivalent fractions given the indicated denominator.
9?=1814
13
Match
1/2
1/4
2/3
3/4
4/5
12/24
3/12
18/27
15/20
12/15
12/24
3/12
18/27
15/20
12/15
14
Multiple Select
Which fractions below are equivalent to 83 ?
(more than one answer)
166
4015
105
179
8131
15
Like denominators and unlike denominators
16
Numerator: Top of fraction (dividend)
Denominator: Bottom of fraction (divisor)
17
If denominators are the same...
Add the numerators
Denominator does not change
18
Multiple Choice
97+91=
98
96
188
817
19
Multiple Choice
Add.
51+53
104
52
54
20
If denominators are the same...
Subtract the numerators
Denominator does not change
21
Multiple Choice
In order to add or subtract fractions, what needs to be true?
The fractions have the same numerator
The fractions have the same denominator
Combine the numerators and denominators together
The fractions have different denominators.
22
Multiple Choice
1712−175
1717
177
176
1
0
23
Multiple Choice
Subtract.
149−146
143
03
283
24
Identify the denominators • Identificar los denominadores
Write or think of the multiples for each number • Escribe los multiplicars
Find the Least Common Denominator • Busque el denomindor en común
25
Find LCM of denominators * Busque LCM
Multiply numerator and denominator of each fraction by the multiple
Write the equivalent fractions * Escribe fracciones equivalentes (1/2=5/10)
Add or subtract the numerators * Agregar o restar las numeradores
26
Multiple Select
Find a common denominator for the fractions below.
32+21
2
3
6
9
27
Multiple Choice
81−61
What is the Least Common Denominator?
8
6
48
14
24
28
Multiple Choice
53+1510
What is the Least Common Denominator?
5
15
75
20
30
29
Multiple Choice
Is this a correct answer?
52+73=125
Yes, the student correctly added.
No, you cannot add unlike denominators
No, 5 + 7 is not 12
No, 2 + 3 is not 5
30
Multiple Choice
What is the sum of these fractions?
41+53
54
203
2017
204
31
Multiple Choice
159+154
155
51
1513
3013
32
Multiple Choice
4/5
3/20
17/20
4/20
33
Multiple Choice
Find the difference.
65−31
21
33
183
541
34
Multiple Choice
1/12
1
2/35
23/25
35
The first step in multiplying fractions is to put what you're going to be multiplying in the same spot
For example: numerators should be with numerators and denominators should be with denominators
Multiplying Fractions
The second step is to simplify any numbers that you can...but be careful and mindful that you CANNOT simplify any numbers that are on the same line!
36
Fill in the Blanks
What is the product of these two fractions?
37
​
38
Fill in the Blanks
What is the product of these fractions?
39
Multiple Choice
What does reciprocal mean?
Stay the same
Flip
40
Multiple Choice
What is the reciprocal of:
52
52
25
41
Multiple Choice
What is the reciprocal of:
75
57
7
75
42
Multiple Choice
What is the reciprocal of 2?
12
2
21
43
Multiple Choice
What would this division sentence look like if you were solving it using a reciprocal?
32÷54
32×54
23×54
32×45
44
​
45
Fill in the Blanks
What is the quotient of dividing these two fractions?
(Hint: Multiply by the reciprocal.)
46
​
47
Fill in the Blanks
Find the quotient.
48
​
49
Fill in the Blanks
Find the quotient.
50
​
51
Fill in the Blanks
No spaces
52
​
53
Multiple Choice
51 of the animals at the zoo are monkeys. 75 of the monkeys are male. What fraction of the animals at the zoo are male monkeys? (Simplest Form)
71
75
257
355
54
Multiple Choice
Mr. Owen went camping. He sat outside at the lake for 2 31 hours. He fell asleep for the last 21 of that time and woke up terribly sunburned. How long was Mr. Owen asleep?
2 hours
4 32 hours
2 61 hours
1 61 hour
55
Multiple Choice
Nurse Sue had 73 cups of laundry detergent. She used 97 of that detergent to wash a load of dirty socks. How many cups of laundry detergent did she use?
4927 cups
31 cups
1610 cups
85 Cups
Objective: Understand and successfully complete calculations with equivalent fractions
Dr. Tom Giles
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