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Subtract 9/40 from 42/14

1st number: 3 0/14, 2nd number: 9/40

42/14 - 9/40 is 111/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 14 × 20 = 280,
    42/14 = 42 × 20/14 × 20 = 840/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    9/40 = 9 × 7/40 × 7 = 63/280
  4. Subtract the two like fractions:
    840/280 - 63/280 = 840 - 63/280 = 777/280
  5. After reducing the fraction, the answer is 111/40
  6. In mixed form: 231/40

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