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Subtract 9/8 from 70/18

1st number: 3 16/18, 2nd number: 1 1/8

70/18 - 9/8 is 199/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 8 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 18 × 4 = 72,
    70/18 = 70 × 4/18 × 4 = 280/72
  3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
    9/8 = 9 × 9/8 × 9 = 81/72
  4. Subtract the two like fractions:
    280/72 - 81/72 = 280 - 81/72 = 199/72
  5. In mixed form: 255/72

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