The Rule — and Why the Simplifying Step Matters
Multiplying fractions follows a simple rule: multiply numerator × numerator and denominator × denominator. But the result often needs simplifying — and that's where many kids lose points.
- Multiply the numerators: 2 × 3 = 6
- Multiply the denominators: 5 × 4 = 20
- Simplify: 6/20 → 3/10
Math Cards requires the answer in fully simplified form, which means kids can't just multiply and move on — they have to check whether the result can be reduced. This makes the simplifying skill automatic through repetition.
Difficulty Levels
Small fractions
Numerators and denominators under 6. Products are easy to simplify.
Larger values
Denominators up to 12. Products require finding the GCF to simplify.
Complex products
Large numerators and denominators where the GCF isn't obvious.
The Connection to Division
Multiplying fractions and dividing fractions are closely linked — dividing by a fraction is the same as multiplying by its reciprocal. Practicing both together builds a complete understanding of fraction arithmetic. Math Cards keeps them as separate modes so each operation gets focused attention.
Practice Multiplying Fractions
20 free problems per day. Unlimited with a one-time $9.99 unlock.