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Subtract 42/36 from 30/8

1st number: 3 6/8, 2nd number: 1 6/36

30/8 - 42/36 is 31/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 36 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 8 × 9 = 72,
    30/8 = 30 × 9/8 × 9 = 270/72
  3. Likewise, for the 2nd fraction, since 36 × 2 = 72,
    42/36 = 42 × 2/36 × 2 = 84/72
  4. Subtract the two like fractions:
    270/72 - 84/72 = 270 - 84/72 = 186/72
  5. After reducing the fraction, the answer is 31/12
  6. In mixed form: 27/12

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