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Subtract 8/10 from 21/48

21/48 - 8/10 is -29/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 48 and 10 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 48 × 5 = 240,
    21/48 = 21 × 5/48 × 5 = 105/240
  3. Likewise, for the 2nd fraction, since 10 × 24 = 240,
    8/10 = 8 × 24/10 × 24 = 192/240
  4. Subtract the two like fractions:
    105/240 - 192/240 = 105 - 192/240 = -87/240
  5. After reducing the fraction, the answer is -29/80

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