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Subtract 2/42 from 49/90

49/90 - 2/42 is 313/630.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 42 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    49/90 = 49 × 7/90 × 7 = 343/630
  3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
    2/42 = 2 × 15/42 × 15 = 30/630
  4. Subtract the two like fractions:
    343/630 - 30/630 = 343 - 30/630 = 313/630

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