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Subtract 63/80 from 20/12

1st number: 1 8/12, 2nd number: 63/80

20/12 - 63/80 is 211/240.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 80 is 240
  2. For the 1st fraction, since 12 × 20 = 240,
    20/12 = 20 × 20/12 × 20 = 400/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    63/80 = 63 × 3/80 × 3 = 189/240
  4. Subtract the two fractions:
    400/240 - 189/240 = 400 - 189/240 = 211/240

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