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FractionsArithmeticElementary schoolabout 0:42

Calculate 1/4 * 9/11: animated lesson

A narrated, step-by-step fractions video lesson with captions. Final answer: 9/44.

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Video with a synthetic English voice and captions. Pick another language for subtitles in that language, or open the interactive version.

Video narrated by a synthetic voice (Piper TTS, en_US-ljspeech-high voice (LJ Speech dataset, public domain)); the steps come from our maths engine and the answer was checked independently. Download MP4 (0.2 MB) · Captions (WebVTT)

Steps on screen

1. The problem
Worked example
1/4 * 9/11
2. Step by step
1. $\frac{1}{4} \times \frac{9}{11} = \frac{1 \times 9}{4 \times 11} = \frac{9}{44}$
  Multiply numerators and multiply denominators
2. $\frac{9}{44}$
  Final answer in lowest terms
3. The answer
$\frac{9}{44}$
1/4 * 9/11 = 9/44
4. Check
- Decimal check: 9/44 ≈ 0.2045454545

Transcript

The problem. Here is the problem: 1 over 4 times 9 over 11. Exact arithmetic with fractions (results kept in lowest terms).

Step by step. Multiply numerators and multiply denominators. Final answer in lowest terms.

The answer. So the answer is 9 over 44. Fractions are combined over a common denominator for addition and subtraction, multiplied straight across, and divided by multiplying by the reciprocal. The result is reduced by the greatest common factor.

Check. Decimal check: 9 over 44 approximately 0.2045454545.

About fractions

Add, subtract, multiply and divide fractions, finding common denominators and simplifying the result.

Calculate 1/4 * 9/11: Fractions Step-by-Step Lesson