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Subtract 49/40 from 20/10

1st number: 2 0/10, 2nd number: 1 9/40

20/10 - 49/40 is 31/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 40 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 10 × 4 = 40,
    20/10 = 20 × 4/10 × 4 = 80/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    49/40 = 49 × 1/40 × 1 = 49/40
  4. Subtract the two like fractions:
    80/40 - 49/40 = 80 - 49/40 = 31/40

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