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Grade 3 - Mathematics
11.15 Fractions and Decimals Word Problems

  1. Read the questions carefully.
  2. Compute the results as per the question.
Example: A class has 40 students out of which 23 are boys. What fraction of the class is boys?
Total number of students = 40
Number of boys = 23
Fraction of boys = 23/40
Answer: 23/40

Example: Ann spends $45.60 on books, $ 12.36 on dolls and $35.78 on miscellaneous. How much did he spend in total?
The total amount spent = $45.60 + $12.36 + $35.78
Answer: $93.74

Example: Sam has 3 1/2 pencils and Ron has 10/4 pencils. Who has more pencils?
The answer to this seems simple since Ron has 10/4 pencils which is equivalent to 2 2/4 pencils.
Clearly since Sam has 3 full pencils and more and Ron has less than 3 full pencils, so Sam has more pencils.
Answer: Sam has more pencils

Example: Spencer painted 2/3 of the wall space in his room. His sister Madison helped and painted 1/3 of the wall space. How much did they paint together?
2/3 + 1/3 = 3/3 = 1
Answer: whole wall space

Example: The teacher taught 3/5th of the book, Mike revised 1/5th more on his own. How much does he still have to revise?
3/5 + 1/5 = 4/5
1 - 4/5 = 1/5
Answer: 1/5


Directions: Solve the following word problems. Also write at least 5 examples of your own.
Q 1: Sponge Bob toys sell for $3.25 in bin 1, $3.50 in bin 2, $3.75 in bin 3, and so on. If the pattern continues, how much will the Sponge Bob toys in bin 7 cost?
$4.75
$4.50
$5.00
$4.25

Q 2: A flock of birds flies over head. 33 of them are red-striped, 43 are blue-striped and 19 are yellow-striped. What fraction of birds is blue-striped?
43/33
33/43
43/95
43/52

Q 3: If there is a book store that is 50% off everything in the store, how would you write a fraction that it is 50% off?
1/2
1/4
2/3
1 1/2

Q 4: If Jon has 2/5 of a pizza and Sue has 3/5 of a pizza, who has more?
Sue
Jon
They have the same amount.

Q 5: Emily and Christian went to the ice cream shop. Emily finished 2/3 of her ice cream and Christian finished 1/2. Who finished more?
Christian
Not Here
Emily

Q 6: Sammy has 48 marbles. 12 are green, 16 red, and 10 are blue. What fraction of his marbles are red?
16/12
16/48
48/16
32/48

Q 7: Kim has $20.00.She wants to buy a purse for $13.49 and a bracelet for $8.98. Does she have enough money? (hint: estimate: $8.98 is about $9.00 and $13.49 is about $13.00. So $9 + $13 = $22)
just enough money
enough money
not enough money

Q 8: Maggie has 4 whole bananas and 2/3 of another one. How many bananas does Maggie have?
4
3 2/3
5
4 2/3

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