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Subtract 20/18 from 84/56

1st number: 1 28/56, 2nd number: 1 2/18

84/56 - 20/18 is 7/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 18 is 504
  2. For the 1st fraction, since 56 × 9 = 504,
    84/56 = 84 × 9/56 × 9 = 756/504
  3. Likewise, for the 2nd fraction, since 18 × 28 = 504,
    20/18 = 20 × 28/18 × 28 = 560/504
  4. Subtract the two fractions:
    756/504 - 560/504 = 756 - 560/504 = 196/504
  5. After reducing the fraction, the answer is 7/18

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