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Subtract 15/18 from 42/8

1st number: 5 2/8, 2nd number: 15/18

42/8 - 15/18 is 53/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 18 is 72
  2. For the 1st fraction, since 8 × 9 = 72,
    42/8 = 42 × 9/8 × 9 = 378/72
  3. Likewise, for the 2nd fraction, since 18 × 4 = 72,
    15/18 = 15 × 4/18 × 4 = 60/72
  4. Subtract the two fractions:
    378/72 - 60/72 = 378 - 60/72 = 318/72
  5. After reducing the fraction, the answer is 53/12
  6. In mixed form: 45/12

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