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Subtract 84/10 from 5/42

1st number: 5/42, 2nd number: 8 4/10

5/42 - 84/10 is -1739/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 10 is 210
  2. For the 1st fraction, since 42 × 5 = 210,
    5/42 = 5 × 5/42 × 5 = 25/210
  3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
    84/10 = 84 × 21/10 × 21 = 1764/210
  4. Subtract the two fractions:
    25/210 - 1764/210 = 25 - 1764/210 = -1739/210

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