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Subtract 25/90 from 3/7

3/7 - 25/90 is 19/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 7 × 90 = 630,
    3/7 = 3 × 90/7 × 90 = 270/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    25/90 = 25 × 7/90 × 7 = 175/630
  4. Subtract the two like fractions:
    270/630 - 175/630 = 270 - 175/630 = 95/630
  5. After reducing the fraction, the answer is 19/126

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