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Subtract 8/49 from 40/21

1st number: 1 19/21, 2nd number: 8/49

40/21 - 8/49 is 256/147.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 49 is 147

    Next, find the equivalent fraction of both fractional numbers with denominator 147
  2. For the 1st fraction, since 21 × 7 = 147,
    40/21 = 40 × 7/21 × 7 = 280/147
  3. Likewise, for the 2nd fraction, since 49 × 3 = 147,
    8/49 = 8 × 3/49 × 3 = 24/147
  4. Subtract the two like fractions:
    280/147 - 24/147 = 280 - 24/147 = 256/147
  5. In mixed form: 1109/147

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