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Subtract 42/20 from 2/16

1st number: 2/16, 2nd number: 2 2/20

2/16 - 42/20 is -79/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 20 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 16 × 5 = 80,
    2/16 = 2 × 5/16 × 5 = 10/80
  3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
    42/20 = 42 × 4/20 × 4 = 168/80
  4. Subtract the two like fractions:
    10/80 - 168/80 = 10 - 168/80 = -158/80
  5. After reducing the fraction, the answer is -79/40

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