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Subtract 21/10 from 1/25

1st number: 1/25, 2nd number: 2 1/10

1/25 - 21/10 is -103/50.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 10 is 50

    Next, find the equivalent fraction of both fractional numbers with denominator 50
  2. For the 1st fraction, since 25 × 2 = 50,
    1/25 = 1 × 2/25 × 2 = 2/50
  3. Likewise, for the 2nd fraction, since 10 × 5 = 50,
    21/10 = 21 × 5/10 × 5 = 105/50
  4. Subtract the two like fractions:
    2/50 - 105/50 = 2 - 105/50 = -103/50

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