Multiply Fractions Example

Grades 5-6Key Stage 2Årskurs 5-6

Problem

Multiply the fractions: 2/3 × 4/5

📝Step-by-Step Solution

1

Understand the rule

Unlike addition, multiplying fractions is straightforward: multiply the numerators together and multiply the denominators together.

a/b × c/d = (a×c)/(b×d)
2

Multiply the numerators

Multiply the top numbers: 2 × 4 = 8

Numerator: 2 × 4 = 8
3

Multiply the denominators

Multiply the bottom numbers: 3 × 5 = 15

Denominator: 3 × 5 = 15
4

Write the result

Combine to get the answer: 8/15

2/3 × 4/5 = 8/15
5

Simplify if needed

Check if 8 and 15 have common factors. They don't (8 = 2³, 15 = 3×5), so 8/15 is already simplified.

Final Answer

8/15

Multiplying fractions is easier than adding! No common denominator needed. Just multiply straight across: tops × tops and bottoms × bottoms. Pro tip: You can simplify before multiplying by canceling common factors diagonally.

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