Here are some examples of fraction word problems.
The first example is a one-step word problem.
The second example shows how blocks can be used to help illustrate the problem.
The third example is a two-step word problem.
More examples and solutions using the bar modeling method to solve fraction word problems are shown on the videos. The bar modeling method also called tape diagrams are use in Singapore Math and Common Core.
How to solve Fraction Word Problems using Algebra,
More Singapore Math Lessons
Martha spent of her allowance on food and shopping. What fraction of her allowance had she left?
She had of her allowance left.
of a group of children were girls. If there were 24 girls, how many children were there in the group?
3 units = 24
1 unit = 24 ÷ 3 = 8
5 units = 5 × 8 = 40
There were 40 children in the group.
Sam had 120 teddy bears in his toy store. He sold of them at $12 each. How much did he receive?
Step 1: Find the number of teddy bears sold.
He sold 80 teddy bears.
Step 2: Find how much money he received.
80 × 12 = 960
He received $960.
Bar Modeling with Fractions
1) Grace thought that a plane journey would take 7/10 hr but the actual journey took 1/5 hr longer. How long did the actual journey take?
2) Timothy took 2/3 hr to paint a portrait. This was 1/3 hr shorter than the time he took to paint scenery. How long did he take to paint scenery?
Word Problem on Subtracting Fractions From Whole Numbers
Example: A craft store has a 9 yd spool of ribbon. In the morning, a customer buys 1/5 yd of ribbon from the spool. In the afternoon another customer buys 7/10 yd of ribbon from the spool. How much ribbon is left?
How to solve real world problems involving multiplication of fractions by using visual fraction models or equations to represent the problem?
1. At the animal shelter 4/6 of the animals are cats. Of the cats 1/2 are male. What fraction of the animals at the shelter are male cats?
2. A taco recipe called for 2/3 cup of cheese per taco. If Andrew wanted to make 3 tacos, how much cheese would he need?
How to solve word problems using tape diagrams and fraction-by-fraction multiplication?
1. Ethan is icing 30 cupcakes. He spreads mint icing on 1/5 of the cupcakes and chocolate on 1/2 of the remaining cupcakes. The rest will get vanilla frosting. How many cupcakes have vanilla frosting?
2. Maddox puts 1/4 of her lawn-mowing money in savings and uses 1/2 of the remaining money to pay back her suster. If she has $15 left, how much did she have at first?
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