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Subtract 18/40 from 80/7

1st number: 11 3/7, 2nd number: 18/40

80/7 - 18/40 is 1537/140.

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,
    80/7 = 80 × 40/7 × 40 = 3200/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    18/40 = 18 × 7/40 × 7 = 126/280
  4. Subtract the two like fractions:
    3200/280 - 126/280 = 3200 - 126/280 = 3074/280
  5. After reducing the fraction, the answer is 1537/140
  6. In mixed form: 10137/140

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