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Subtract 30/18 from 24/20

1st number: 1 4/20, 2nd number: 1 12/18

24/20 - 30/18 is -7/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 18 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    24/20 = 24 × 9/20 × 9 = 216/180
  3. Likewise, for the 2nd fraction, since 18 × 10 = 180,
    30/18 = 30 × 10/18 × 10 = 300/180
  4. Subtract the two like fractions:
    216/180 - 300/180 = 216 - 300/180 = -84/180
  5. After reducing the fraction, the answer is -7/15

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