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Subtract 1/20 from 49/45

1st number: 1 4/45, 2nd number: 1/20

49/45 - 1/20 is 187/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    49/45 = 49 × 4/45 × 4 = 196/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    1/20 = 1 × 9/20 × 9 = 9/180
  4. Subtract the two like fractions:
    196/180 - 9/180 = 196 - 9/180 = 187/180
  5. In mixed form: 17/180

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