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Subtract 12/8 from 90/25

1st number: 3 15/25, 2nd number: 1 4/8

90/25 - 12/8 is 21/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 8 is 200

    Next, find the equivalent fraction of both fractional numbers with denominator 200
  2. For the 1st fraction, since 25 × 8 = 200,
    90/25 = 90 × 8/25 × 8 = 720/200
  3. Likewise, for the 2nd fraction, since 8 × 25 = 200,
    12/8 = 12 × 25/8 × 25 = 300/200
  4. Subtract the two like fractions:
    720/200 - 300/200 = 720 - 300/200 = 420/200
  5. After reducing the fraction, the answer is 21/10
  6. In mixed form: 21/10

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