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Subtract 1/40 from 42/35

1st number: 1 7/35, 2nd number: 1/40

42/35 - 1/40 is 47/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 35 × 8 = 280,
    42/35 = 42 × 8/35 × 8 = 336/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    1/40 = 1 × 7/40 × 7 = 7/280
  4. Subtract the two like fractions:
    336/280 - 7/280 = 336 - 7/280 = 329/280
  5. After reducing the fraction, the answer is 47/40
  6. In mixed form: 17/40

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