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Add 36/54 and 6/21

36/54 + 6/21 is 20/21.

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,
    6/21 = 6 × 18/21 × 18 = 108/378
  4. Add the two like fractions:
    252/378 + 108/378 = 252 + 108/378 = 360/378
  5. 360/378 simplified gives 20/21
  6. So, 36/54 + 6/21 = 20/21

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