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Subtract 90/80 from 60/12

1st number: 5 0/12, 2nd number: 1 10/80

60/12 - 90/80 is 31/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 80 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 12 × 20 = 240,
    60/12 = 60 × 20/12 × 20 = 1200/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    90/80 = 90 × 3/80 × 3 = 270/240
  4. Subtract the two like fractions:
    1200/240 - 270/240 = 1200 - 270/240 = 930/240
  5. After reducing the fraction, the answer is 31/8
  6. In mixed form: 37/8

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