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Subtract 80/98 from 21/8

1st number: 2 5/8, 2nd number: 80/98

21/8 - 80/98 is 709/392.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 98 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 98 × 4 = 392,
    80/98 = 80 × 4/98 × 4 = 320/392
  4. Subtract the two like fractions:
    1029/392 - 320/392 = 1029 - 320/392 = 709/392
  5. In mixed form: 1317/392

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