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Subtract 2/20 from 81/25

1st number: 3 6/25, 2nd number: 2/20

81/25 - 2/20 is 157/50.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 20 is 100

    Next, find the equivalent fraction of both fractional numbers with denominator 100
  2. For the 1st fraction, since 25 × 4 = 100,
    81/25 = 81 × 4/25 × 4 = 324/100
  3. Likewise, for the 2nd fraction, since 20 × 5 = 100,
    2/20 = 2 × 5/20 × 5 = 10/100
  4. Subtract the two like fractions:
    324/100 - 10/100 = 324 - 10/100 = 314/100
  5. After reducing the fraction, the answer is 157/50
  6. In mixed form: 37/50

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