Unit 3 · Class 6 IB MYP · MCQ Test
Fractions & Decimals MCQ Test — Class 6 IB MYP
Practice 10 multiple-choice questions with instant answer reveal and explanations.
Fractions & Decimals — MCQ Questions
1Convert the fraction $\frac{3}{4}$ to a decimal.
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Answer: 0.75
Hint: Divide the numerator by the denominator: 3 ÷ 4.
Solution:
Divide 3 by 4: — 3 \div 4 = 0.75
2What is $\frac{1}{2} + \frac{1}{4}$?
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Answer: $\frac{3}{4}$
Hint: Find a common denominator first. The LCD of 2 and 4 is 4.
Solution:
Convert to the same denominator: — \frac{1}{2} = \frac{2}{4}
Add: — \frac{2}{4} + \frac{1}{4} = \frac{3}{4}
3Which fraction is equivalent to $\frac{2}{5}$?
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Answer: $\frac{4}{10}$
Hint: Multiply both numerator and denominator by the same number.
Solution:
Multiply numerator and denominator by 2: — \frac{2 \times 2}{5 \times 2} = \frac{4}{10}
4Convert 0.6 to a fraction in simplest form.
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Answer: $\frac{3}{5}$
Hint: 0.6 = 6/10. Now simplify by dividing both by their GCD.
Solution:
Write as a fraction: — 0.6 = \frac{6}{10}
Simplify by dividing by 2: — \frac{6}{10} = \frac{3}{5}
5Which is larger: $\frac{3}{8}$ or $\frac{1}{2}$?
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Answer: $\frac{1}{2}$
Hint: Convert both to the same denominator or to decimals to compare.
Solution:
Convert to the same denominator (8): — \frac{1}{2} = \frac{4}{8}
Compare: — \frac{4}{8} > \frac{3}{8}
6What is 0.3 + 0.45?
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Answer: 0.75
Hint: Line up the decimal points and add: 0.30 + 0.45.
Solution:
Align decimals: — 0.30 + 0.45 = 0.75
7Simplify $\frac{12}{18}$ to its lowest terms.
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Answer: $\frac{2}{3}$
Hint: Find the GCD of 12 and 18 (which is 6), then divide both by it.
Solution:
GCD of 12 and 18 is 6. — \frac{12 \div 6}{18 \div 6} = \frac{2}{3}
8What is $\frac{5}{6} - \frac{1}{6}$?
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Answer: $\frac{4}{6}$
Hint: When denominators are the same, just subtract the numerators.
Solution:
Same denominator, subtract numerators: — \frac{5-1}{6} = \frac{4}{6}
9Convert $\frac{7}{10}$ to a decimal.
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Answer: 0.7
Hint: Dividing by 10 moves the decimal point one place left.
Solution:
Divide: — 7 \div 10 = 0.7
10What is 2.5 − 1.8?
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Answer: 0.7
Hint: Subtract by aligning decimal points: 2.5 − 1.8.
Solution:
Subtract: — 2.5 - 1.8 = 0.7
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Tips for Fractions & Decimals MCQs
- 1Read each question carefully and identify what is being asked before looking at the options.
- 2Try to solve the problem mentally or on paper first, then match your answer with the options.
- 3Use elimination — rule out clearly wrong options to improve your chances even when unsure.
- 4Check units, signs, and edge cases — these are common traps in Fractions & Decimals MCQs.
- 5Review your mistakes after completing the test to build lasting understanding.
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