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Subtract 1/60 from 42/80

42/80 - 1/60 is 61/120.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 60 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 80 × 3 = 240,
    42/80 = 42 × 3/80 × 3 = 126/240
  3. Likewise, for the 2nd fraction, since 60 × 4 = 240,
    1/60 = 1 × 4/60 × 4 = 4/240
  4. Subtract the two like fractions:
    126/240 - 4/240 = 126 - 4/240 = 122/240
  5. After reducing the fraction, the answer is 61/120

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