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Add 15/21 and 3/48

15/21 + 3/48 is 87/112.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 48 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 21 × 16 = 336,
    15/21 = 15 × 16/21 × 16 = 240/336
  3. Likewise, for the 2nd fraction, since 48 × 7 = 336,
    3/48 = 3 × 7/48 × 7 = 21/336
  4. Add the two like fractions:
    240/336 + 21/336 = 240 + 21/336 = 261/336
  5. 261/336 simplified gives 87/112
  6. So, 15/21 + 3/48 = 87/112

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