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Subtract 1/42 from 8/5

1st number: 1 3/5, 2nd number: 1/42

8/5 - 1/42 is 331/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 5 × 42 = 210,
    8/5 = 8 × 42/5 × 42 = 336/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    1/42 = 1 × 5/42 × 5 = 5/210
  4. Subtract the two like fractions:
    336/210 - 5/210 = 336 - 5/210 = 331/210
  5. In mixed form: 1121/210

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