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PercentagesArithmeticMiddle schoolabout 0:26

45 is what percent of 180?: animated lesson

A narrated, step-by-step percentages video lesson with captions. Final answer: 25%.

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. 1. The problem
    Working with percentages
    45 is what percent of 180?
  2. 2. Step by step
    1. 45180=0.25\frac{45}{180} = 0.25
      Divide the part by the whole
    2. 0.25×100=25%0.25 \times 100 = 25\%
      Multiply by 100 to convert to a percent
  3. 3. The answer
    25%25\%

    45 ÷ 180 × 100 = 25%

  4. 4. Check
    • Check: 25% of 180 = 45

Transcript

The problem. Here is the problem: 45 is what percent of 180? Express a part as a percentage of a whole.

Step by step. Divide the part by the whole. Multiply by 100 to convert to a percent.

The answer. So the answer is 25 percent. 45 is 25 percent of 180.

Check. Check: 25 percent of 180 equals 45.

About percentages

Percent of a number, what percent one number is of another, the whole from a part, and percent change.

45 is what percent of 180?: Percentages Step-by-Step Lesson