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Subtract 12/90 from 42/16

1st number: 2 10/16, 2nd number: 12/90

42/16 - 12/90 is 299/120.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 90 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 16 × 45 = 720,
    42/16 = 42 × 45/16 × 45 = 1890/720
  3. Likewise, for the 2nd fraction, since 90 × 8 = 720,
    12/90 = 12 × 8/90 × 8 = 96/720
  4. Subtract the two like fractions:
    1890/720 - 96/720 = 1890 - 96/720 = 1794/720
  5. After reducing the fraction, the answer is 299/120
  6. In mixed form: 259/120

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