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Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 6 million people

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

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Rational Numbers

Concept Quizzes

Converting Decimals into Fractions
Repeating Decimals to Fraction

Challenge Quizzes

Level 2
Level 3
Level 4

Converting Decimals into Fractions

Which of the following is equal to \( \frac{ 1}{2} \)?

0.125 0.25 0.5 0.2

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by Brilliant Staff

Which of the following is equal to \( 0.3 \)?

\[ \frac{3} {1} \] \[ \frac{3} {10} \] \[ \frac{3} {20} \] \[ \frac{3} {100} \]

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by Brilliant Staff

Which of the following is equal to \( 0.54 \)?

\[ \frac{54} {50} \] \[ \frac{54} {25} \] \[ \frac{27} {25} \] \[ \frac{27} {50} \]

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by Brilliant Staff

Express the following equation using fractions: \[6.5 - 2.3 = 4.2.\]

\[\displaystyle{ \frac{13}{2} - \frac{23}{10} = \frac{21}{5}} \] \[\displaystyle{ \frac{327}{50} - \frac{58}{25} = \frac{41}{10}}\] \[\displaystyle{ \frac{650}{99} - \frac{117}{50} = \frac{17}{4}} \] \[\displaystyle{ \frac{163}{25} - \frac{119}{50} = \frac{107}{25}} \]

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by Brilliant Staff

Which of the following is equal to \( 0.7 \)?

\[ \frac{7} {1} \] \[ \frac{7} {20} \] \[ \frac{7} {10} \] \[ \frac{7} {100} \]

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by Brilliant Staff

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