Adding Fractions with Unlike Denominators

Learn how to combine fractions that have different bottom numbers!

What Does It Mean to Add Fractions?

Fractions are parts of a whole!
When we add fractions with different denominators (the bottom numbers), we need to find a common way to talk about the parts. It's like trying to add slices from different sized pizzas - we need to make sure all slices are the same size first!

How to Add Fractions with Different Denominators

1️⃣ Find a common denominator (a number both denominators can divide into)

2️⃣ Convert both fractions to have this common denominator

3️⃣ Add the numerators (the top numbers) and keep the denominator the same

Let's Practice Together!

Example 1: Adding \(\frac{1}{2}\) + \(\frac{1}{4}\)

\(\frac{1}{2}\)
+
\(\frac{1}{4}\)
= ?

\(\frac{1}{2}\) becomes \(\frac{2}{4}\), so \(\frac{2}{4}\) + \(\frac{1}{4}\) = \(\frac{3}{4}\)

Example 2: Adding \(\frac{1}{3}\) + \(\frac{1}{6}\)

\(\frac{1}{3}\)
+
\(\frac{1}{6}\)
= ?

\(\frac{1}{3}\) becomes \(\frac{1}{6}\), so \(\frac{2}{6} + \frac{1}{6} = \frac{3}{6}\) which simplifies to \(\frac{1}{2}\)

Parent Tips 🌟

  • Use real-world examples: Try adding pizza slices or chocolate bar pieces to make the concept more concrete.
  • Visual aids help: Draw fraction circles or bars to show how different denominators can be made equal.
  • Start simple: Begin with denominators that have obvious common multiples (like 2 and 4) before moving to more complex pairs.

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