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Add 42/64 and 21/54

42/64 + 21/54 is 301/288.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 64 and 54 is 1728

    Next, find the equivalent fraction of both fractional numbers with denominator 1728
  2. For the 1st fraction, since 64 × 27 = 1728,
    42/64 = 42 × 27/64 × 27 = 1134/1728
  3. Likewise, for the 2nd fraction, since 54 × 32 = 1728,
    21/54 = 21 × 32/54 × 32 = 672/1728
  4. Add the two like fractions:
    1134/1728 + 672/1728 = 1134 + 672/1728 = 1806/1728
  5. 1806/1728 simplified gives 301/288
  6. So, 42/64 + 21/54 = 301/288
    In mixed form: 113/288

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