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Subtract 21/8 from 98/9

1st number: 10 8/9, 2nd number: 2 5/8

98/9 - 21/8 is 595/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 8 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 9 × 8 = 72,
    98/9 = 98 × 8/9 × 8 = 784/72
  3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
    21/8 = 21 × 9/8 × 9 = 189/72
  4. Subtract the two like fractions:
    784/72 - 189/72 = 784 - 189/72 = 595/72
  5. In mixed form: 819/72

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