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Subtract 84/24 from 7/5

1st number: 1 2/5, 2nd number: 3 12/24

7/5 - 84/24 is -21/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 24 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 5 × 24 = 120,
    7/5 = 7 × 24/5 × 24 = 168/120
  3. Likewise, for the 2nd fraction, since 24 × 5 = 120,
    84/24 = 84 × 5/24 × 5 = 420/120
  4. Subtract the two like fractions:
    168/120 - 420/120 = 168 - 420/120 = -252/120
  5. After reducing the fraction, the answer is -21/10

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