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Subtract 9/80 from 18/7

1st number: 2 4/7, 2nd number: 9/80

18/7 - 9/80 is 1377/560.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 7 × 80 = 560,
    18/7 = 18 × 80/7 × 80 = 1440/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    9/80 = 9 × 7/80 × 7 = 63/560
  4. Subtract the two like fractions:
    1440/560 - 63/560 = 1440 - 63/560 = 1377/560
  5. In mixed form: 2257/560

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