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Subtract 21/18 from 1/35

1st number: 1/35, 2nd number: 1 3/18

1/35 - 21/18 is -239/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 18 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 35 × 18 = 630,
    1/35 = 1 × 18/35 × 18 = 18/630
  3. Likewise, for the 2nd fraction, since 18 × 35 = 630,
    21/18 = 21 × 35/18 × 35 = 735/630
  4. Subtract the two like fractions:
    18/630 - 735/630 = 18 - 735/630 = -717/630
  5. After reducing the fraction, the answer is -239/210

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