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Subtract 80/49 from 21/8

1st number: 2 5/8, 2nd number: 1 31/49

21/8 - 80/49 is 389/392.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 49 is 392

    Next, find the equivalent fraction of both fractional numbers with denominator 392
  2. For the 1st fraction, since 8 × 49 = 392,
    21/8 = 21 × 49/8 × 49 = 1029/392
  3. Likewise, for the 2nd fraction, since 49 × 8 = 392,
    80/49 = 80 × 8/49 × 8 = 640/392
  4. Subtract the two like fractions:
    1029/392 - 640/392 = 1029 - 640/392 = 389/392

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