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Subtract 2/90 from 25/42

25/42 - 2/90 is 361/630.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 90 is 630
  2. For the 1st fraction, since 42 × 15 = 630,
    25/42 = 25 × 15/42 × 15 = 375/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    2/90 = 2 × 7/90 × 7 = 14/630
  4. Subtract the two fractions:
    375/630 - 14/630 = 375 - 14/630 = 361/630

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