Skip to content
  • Open the math solver
  • Ask the AI tutor
  • Find an AP course
  • Create a quiz
  • Open the calculator
  • Graphing Calculator
  • Browse all calculators
  • Read math guides
↑ ↓Enter to open · Esc to close
Solve a problem
Order of operationsArithmeticElementary schoolabout 0:59

Evaluate 7/9/3+2: animated lesson

A narrated, step-by-step order of operations video lesson with captions. Final answer: 61/27.

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
    7/9/3+2
  2. 2. Steps, part 1
    1. 79÷3=79×13\frac{7}{9} \div 3 = \frac{7}{9} \times \frac{1}{3}
      Dividing by a fraction means multiplying by its reciprocal
    2. 79×13=7×19×3=727\frac{7}{9} \times \frac{1}{3} = \frac{7 \times 1}{9 \times 3} = \frac{7}{27}
      Multiply numerators and multiply denominators
    3. 727+2=727+5427\frac{7}{27} + 2 = \frac{7}{27} + \frac{54}{27}
      Rewrite both fractions with the least common denominator
    4. 7+5427=6127\frac{7 + 54}{27} = \frac{61}{27}
      Add the numerators and keep the denominator
  3. 3. Steps, part 2
    1. 6127=2727\frac{61}{27} = 2\tfrac{7}{27}
      Final answer in lowest terms
  4. 4. The answer
    6127\frac{61}{27}

    7/9/3+2 = 61/27

  5. 5. Check
    • Decimal check: 61/27 ≈ 2.259259259
    • As a mixed number: 2 7/27

Transcript

The problem. Here is the problem: 7 over 9/3 plus 2. Exact arithmetic with fractions (results kept in lowest terms).

Steps, part 1. Dividing by a fraction means multiplying by its reciprocal. Multiply numerators and multiply denominators. Rewrite both fractions with the least common denominator. The LCD of 27 and 1 is 27. Add the numerators and keep the denominator.

Steps, part 2. Final answer in lowest terms.

The answer. So the answer is 61 over 27. 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: 61 over 27 approximately 2.259259259. As a mixed number: 2 7 over 27.

About order of operations

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

Evaluate 7/9/3+2: Order of operations Step-by-Step Lesson