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Subtract 2/40 from 20/7

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

20/7 - 2/40 is 393/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 40 is 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,
    2/40 = 2 × 7/40 × 7 = 14/280
  4. Subtract the two fractions:
    800/280 - 14/280 = 800 - 14/280 = 786/280
  5. After reducing the fraction, the answer is 393/140
  6. In mixed form: 2113/140

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