Subtracting fractions with same and different denominators, including from whole numbers.
Where your child meets this in real life: Finding remaining quantities (how much pizza is left after eating some)
SEAGReady breaks subtract fractions into 3 steps, taught in order so each skill builds on the last.
excluded lesson — excluded from official-format mocks
Master same denominator subtraction skills
excluded lesson — excluded from official-format mocks
Master different denominator subtraction skills
excluded lesson — excluded from official-format mocks
Master subtracting from whole numbers skills
Three free sample questions from our subtract fractions course. Every question comes with a full explanation, and hints that guide without giving the answer away.
This is the exact interactive worked example your child sees in SEAGReady. Step through it and watch the method build up.
Ellie has ⁵⁄₈ of a pizza left over from dinner. She eats ²⁄₈ for breakfast.
What fraction of the pizza does Ellie have now?
⁵⁄₈ − ²⁄₈
Both fractions have denominator 8
Step 1 of 4
Ellie has ⁵⁄₈ of a pizza left over from dinner. She eats ²⁄₈ for breakfast.
What fraction of the pizza does Ellie have now?
Ellie has ³⁄₈ of the pizza left.
The key insight: When denominators are the same, just subtract the numerators and keep the denominator!
Common mix-up: ⁵⁄₈ − ²⁄₈ = ³⁄₀. You subtract the numerators but keep the denominator - never subtract denominators!
These are the misconceptions we see most often in subtract fractions, including the ones our practice questions are specifically designed to catch.
Struggling with subtract fractions? The real gap is often in one of these earlier topics.
SEAGReady finds the exact step where your child gets stuck, teaches it with worked examples like the one above, and brings it back for review so it sticks.
Free to start · no card needed