Evaluate 7/(6+2): animated lesson
A narrated, step-by-step order of operations video lesson with captions. Final answer: 7/8.
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 (0.3 MB) · Captions (WebVTT)
Steps on screen
- 1. The problemWorked example7/(6+2)
- 2. Step by step
- Add the whole numbers
- Dividing by a fraction means multiplying by its reciprocal
- Multiply numerators and multiply denominators
- Final answer in lowest terms
- 3. The answer
7/(6+2) = 7/8
- 4. Check
- Decimal check: 7/8 ≈ 0.875
Transcript
The problem. Here is the problem: 7/(6 plus 2). Exact arithmetic with fractions (results kept in lowest terms).
Step by step. Add the whole numbers. Dividing by a fraction means multiplying by its reciprocal. Multiply numerators and multiply denominators. Final answer in lowest terms.
The answer. So the answer is 7 over 8. 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: 7 over 8 approximately 0.875.
About order of operations
Evaluate expressions with brackets, powers, multiplication, division, addition and subtraction in the right order.
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