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Subtract 7/8 from 42/9

1st number: 4 6/9, 2nd number: 7/8

42/9 - 7/8 is 91/24.

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,
    42/9 = 42 × 8/9 × 8 = 336/72
  3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
    7/8 = 7 × 9/8 × 9 = 63/72
  4. Subtract the two like fractions:
    336/72 - 63/72 = 336 - 63/72 = 273/72
  5. After reducing the fraction, the answer is 91/24
  6. In mixed form: 319/24

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