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Subtract 98/20 from 42/80

1st number: 42/80, 2nd number: 4 18/20

42/80 - 98/20 is -35/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 20 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    42/80 = 42 × 1/80 × 1 = 42/80
  3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
    98/20 = 98 × 4/20 × 4 = 392/80
  4. Subtract the two like fractions:
    42/80 - 392/80 = 42 - 392/80 = -350/80
  5. After reducing the fraction, the answer is -35/8

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