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Subtract 3/63 from 18/70

18/70 - 3/63 is 22/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 63 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    18/70 = 18 × 9/70 × 9 = 162/630
  3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
    3/63 = 3 × 10/63 × 10 = 30/630
  4. Subtract the two like fractions:
    162/630 - 30/630 = 162 - 30/630 = 132/630
  5. After reducing the fraction, the answer is 22/105

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