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Subtract 49/30 from 5/21

1st number: 5/21, 2nd number: 1 19/30

5/21 - 49/30 is -293/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    5/21 = 5 × 10/21 × 10 = 50/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    49/30 = 49 × 7/30 × 7 = 343/210
  4. Subtract the two like fractions:
    50/210 - 343/210 = 50 - 343/210 = -293/210

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