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Subtract 42/40 from 28/14

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

28/14 - 42/40 is 19/20.

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,
    28/14 = 28 × 20/14 × 20 = 560/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    42/40 = 42 × 7/40 × 7 = 294/280
  4. Subtract the two like fractions:
    560/280 - 294/280 = 560 - 294/280 = 266/280
  5. After reducing the fraction, the answer is 19/20

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