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Add 21/48 and 3/5

21/48 + 3/5 is 83/80.

Steps for adding 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,
    3/5 = 3 × 48/5 × 48 = 144/240
  4. Add the two like fractions:
    105/240 + 144/240 = 105 + 144/240 = 249/240
  5. 249/240 simplified gives 83/80
  6. So, 21/48 + 3/5 = 83/80
    In mixed form: 13/80

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