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Subtract 40/9 from 3/7

1st number: 3/7, 2nd number: 4 4/9

3/7 - 40/9 is -253/63.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 7 × 9 = 63,
    3/7 = 3 × 9/7 × 9 = 27/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    40/9 = 40 × 7/9 × 7 = 280/63
  4. Subtract the two like fractions:
    27/63 - 280/63 = 27 - 280/63 = -253/63

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