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Add 10/54 and 21/42

10/54 + 21/42 is 37/54.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 42 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    10/54 = 10 × 7/54 × 7 = 70/378
  3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
    21/42 = 21 × 9/42 × 9 = 189/378
  4. Add the two like fractions:
    70/378 + 189/378 = 70 + 189/378 = 259/378
  5. 259/378 simplified gives 37/54
  6. So, 10/54 + 21/42 = 37/54

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