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Subtract 8/5 from 21/48

1st number: 21/48, 2nd number: 1 3/5

21/48 - 8/5 is -93/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 48 and 5 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 5 × 48 = 240,
    8/5 = 8 × 48/5 × 48 = 384/240
  4. Subtract the two like fractions:
    105/240 - 384/240 = 105 - 384/240 = -279/240
  5. After reducing the fraction, the answer is -93/80

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