Colli Math

Fraction Operations

All four operations with fractions and mixed numbers; equivalence and lowest terms.

11/12 units complete · 81 records

Equivalent Fractions and Lowest Terms

Recognize equivalent fractions, generate common forms, and reduce results to lowest terms using factor structure.

3/4 units 29 rec

Mixed Numbers and Improper Fractions

Convert between mixed numbers and improper fractions and keep one consistent form through a calculation.

6 rec

Adding and Subtracting Fractions

Add and subtract fractions by choosing valid common denominators and combining signed numerators correctly.

6 rec

Multiplying and Dividing Fractions

Multiply fractions directly, divide by using reciprocals, and use safe cancellation to control complexity.

5/5 units 32 rec

Signed Fraction and Mixed-Number Operations

Apply sign rules correctly across all fraction operations, especially with negative mixed numbers and signed divisors.

6 rec