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Subtract 7/10 from 2/84

2/84 - 7/10 is -71/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 10 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    2/84 = 2 × 5/84 × 5 = 10/420
  3. Likewise, for the 2nd fraction, since 10 × 42 = 420,
    7/10 = 7 × 42/10 × 42 = 294/420
  4. Subtract the two like fractions:
    10/420 - 294/420 = 10 - 294/420 = -284/420
  5. After reducing the fraction, the answer is -71/105

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