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Add 81/54 and 21/7

1st number: 1 27/54, 2nd number: 3 0/7

81/54 + 21/7 is 9/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 7 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    81/54 = 81 × 7/54 × 7 = 567/378
  3. Likewise, for the 2nd fraction, since 7 × 54 = 378,
    21/7 = 21 × 54/7 × 54 = 1134/378
  4. Add the two like fractions:
    567/378 + 1134/378 = 567 + 1134/378 = 1701/378
  5. 1701/378 simplified gives 9/2
  6. So, 81/54 + 21/7 = 9/2
    In mixed form: 41/2

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