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Subtract 6/40 from 45/7

1st number: 6 3/7, 2nd number: 6/40

45/7 - 6/40 is 879/140.

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,
    45/7 = 45 × 40/7 × 40 = 1800/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    6/40 = 6 × 7/40 × 7 = 42/280
  4. Subtract the two fractions:
    1800/280 - 42/280 = 1800 - 42/280 = 1758/280
  5. After reducing the fraction, the answer is 879/140
  6. In mixed form: 639/140

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