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Add 36/54 and 3/21

36/54 + 3/21 is 17/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 21 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    36/54 = 36 × 7/54 × 7 = 252/378
  3. Likewise, for the 2nd fraction, since 21 × 18 = 378,
    3/21 = 3 × 18/21 × 18 = 54/378
  4. Add the two like fractions:
    252/378 + 54/378 = 252 + 54/378 = 306/378
  5. 306/378 simplified gives 17/21
  6. So, 36/54 + 3/21 = 17/21

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