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Add 21/48 and 2/40

21/48 + 2/40 is 39/80.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 48 and 40 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 40 × 6 = 240,
    2/40 = 2 × 6/40 × 6 = 12/240
  4. Add the two like fractions:
    105/240 + 12/240 = 105 + 12/240 = 117/240
  5. 117/240 simplified gives 39/80
  6. So, 21/48 + 2/40 = 39/80

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