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Order of operationsArithmeticElementary schoolabout 0:56

Evaluate 6/11 + 6/10 * 7: animated lesson

A narrated, step-by-step order of operations video lesson with captions. Final answer: 261/55.

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 (0.4 MB) · Captions (WebVTT)

Steps on screen

  1. 1. The problem
    Worked example
    6/11 + 6/10 * 7
  2. 2. Step by step
    1. 35×7=3×75×1=215\frac{3}{5} \times 7 = \frac{3 \times 7}{5 \times 1} = \frac{21}{5}
      Multiply numerators and multiply denominators
    2. 611+215=3055+23155\frac{6}{11} + \frac{21}{5} = \frac{30}{55} + \frac{231}{55}
      Rewrite both fractions with the least common denominator
    3. 30+23155=26155\frac{30 + 231}{55} = \frac{261}{55}
      Add the numerators and keep the denominator
    4. 26155=44155\frac{261}{55} = 4\tfrac{41}{55}
      Final answer in lowest terms
  3. 3. The answer
    26155\frac{261}{55}

    6/11 + 6/10 * 7 = 261/55

  4. 4. Check
    • Decimal check: 261/55 ≈ 4.745454545
    • As a mixed number: 4 41/55

Transcript

The problem. Here is the problem: 6 over 11 plus 6 over 10 times 7. Exact arithmetic with fractions (results kept in lowest terms).

Step by step. Multiply numerators and multiply denominators. Rewrite both fractions with the least common denominator. The LCD of 11 and 5 is 55. Add the numerators and keep the denominator. Final answer in lowest terms.

The answer. So the answer is 261 over 55. 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: 261 over 55 approximately 4.745454545. As a mixed number: 4 41 over 55.

About order of operations

Evaluate expressions with brackets, powers, multiplication, division, addition and subtraction in the right order.

Evaluate 6/11 + 6/10 * 7: Animated Step-by-Step Lesson