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Add 40/48 and 2/21

40/48 + 2/21 is 13/14.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 48 × 7 = 336,
    40/48 = 40 × 7/48 × 7 = 280/336
  3. Likewise, for the 2nd fraction, since 21 × 16 = 336,
    2/21 = 2 × 16/21 × 16 = 32/336
  4. Add the two like fractions:
    280/336 + 32/336 = 280 + 32/336 = 312/336
  5. 312/336 simplified gives 13/14
  6. So, 40/48 + 2/21 = 13/14

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