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Subtract 18/90 from 84/28

1st number: 3 0/28, 2nd number: 18/90

84/28 - 18/90 is 14/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 90 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    84/28 = 84 × 45/28 × 45 = 3780/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    18/90 = 18 × 14/90 × 14 = 252/1260
  4. Subtract the two like fractions:
    3780/1260 - 252/1260 = 3780 - 252/1260 = 3528/1260
  5. After reducing the fraction, the answer is 14/5
  6. In mixed form: 24/5

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