Fractions

From equivalence to operations with the LCM

The Fractions unit belongs to the Fractions, decimals and finance section of Math Mental and has 17 lessons: from equivalence to operations with the LCM.

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Sample questions

In the lesson, numbers change every session and the solution appears after you answer.

$\frac{3}{4} = \frac{?}{20}$
Step by step
1. $\displaystyle 20 \div 4 = 5$
2. $\displaystyle 3 \cdot 5 = 15$
Answer $15$
$\frac{42}{56}$
Step by step
1. $\displaystyle \operatorname{gcd}(42, 56) = 14$
2. $\displaystyle \frac{42 \div 14}{56 \div 14}$
Answer $\frac{3}{4}$
$\frac{5}{6} \;\square\; \frac{7}{9}$
Step by step
1. $\displaystyle \frac{15}{18},\; \frac{14}{18}$
Answer $>$

Lessons in this unit

Equivalent fractions Lesson, 8 questions
Completing terms Lesson, 8 questions
Simplifying fractions Lesson, 8 questions
Practice: equivalence Practice, 10 questions
Simplifying with the GCD Lesson, 8 questions
Comparing fractions Lesson, 8 questions
Different denominators Lesson, 8 questions
Same denominator Lesson, 8 questions
Review: compare and add Practice, 10 questions
Multiple denominator Lesson, 8 questions
Adding and subtracting with the LCM Lesson, 8 questions
Mixed numbers Lesson, 8 questions
Multiplying fractions Lesson, 8 questions
Dividing fractions Lesson, 8 questions
Fraction of a quantity Lesson, 8 questions
Review: operations Practice, 10 questions
Unit test 12 questions

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Sample questions

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Lessons in this unit

Your first lesson takes five minutes