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Subtract 42/7 from 25/9

1st number: 2 7/9, 2nd number: 6 0/7

25/9 - 42/7 is -29/9.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 7 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 9 × 7 = 63,
    25/9 = 25 × 7/9 × 7 = 175/63
  3. Likewise, for the 2nd fraction, since 7 × 9 = 63,
    42/7 = 42 × 9/7 × 9 = 378/63
  4. Subtract the two like fractions:
    175/63 - 378/63 = 175 - 378/63 = -203/63
  5. After reducing the fraction, the answer is -29/9

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