Real-Life Word Problems Involving Fractions
Welcome back to EasyMathsGuid! In this lesson, we’re solving real-life word problems using fractions. These help you apply math to everyday situations.
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๐ถ Word Problem 1
A school bought 7 1/2 kilograms of rice for a math club event.
They used 2 2/3 kilograms for lunch and 1 3/4 kilograms for dinner.
Question:
How much rice is left?
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๐งฎ Solution:
Step 1: Convert mixed numbers:
7 1/2 = 15/2
2 2/3 = 8/3
1 3/4 = 7/4
Step 2: Add lunch and dinner used:
8/3 = 32/12
7/4 = 21/12
Total used = 32/12 + 21/12 = 53/12
Step 3: Total rice = 15/2 = 90/12
Step 4: Leftover = 90/12 - 53/12 = 37/12 = 3 1/12
✅ Final Answer: 3 1/12 kg of rice is left
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๐ท Word Problem 2
Mary read 3/4 of a book in the morning and 2/5 in the evening.
How much of the book did she read in total?
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๐งฎ Solution:
LCM of 4 and 5 = 20
3/4 = 15/20
2/5 = 8/20
Total = 15/20 + 8/20 = 23/20 = 1 3/20
✅ Answer: Mary read 1 3/20 of the book
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๐ท Word Problem 3
A water tank contains 5 1/2 liters of water. If 3 3/4 liters are used,
how much water is left?
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๐งฎ Solution:
Convert to improper fractions:
5 1/2 = 11/2
3 3/4 = 15/4
LCM of 2 and 4 = 4
11/2 = 22/4
Now subtract:
22/4 - 15/4 = 7/4 = 1 3/4
✅ Answer: 1 3/4 liters of water is left
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