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Subtract 1/40 from 20/7

1st number: 2 6/7, 2nd number: 1/40

20/7 - 1/40 is 793/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 7 × 40 = 280,
    20/7 = 20 × 40/7 × 40 = 800/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    1/40 = 1 × 7/40 × 7 = 7/280
  4. Subtract the two like fractions:
    800/280 - 7/280 = 800 - 7/280 = 793/280
  5. In mixed form: 2233/280

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