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Add 21/49 and 18/64

21/49 + 18/64 is 159/224.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 64 is 3136

    Next, find the equivalent fraction of both fractional numbers with denominator 3136
  2. For the 1st fraction, since 49 × 64 = 3136,
    21/49 = 21 × 64/49 × 64 = 1344/3136
  3. Likewise, for the 2nd fraction, since 64 × 49 = 3136,
    18/64 = 18 × 49/64 × 49 = 882/3136
  4. Add the two like fractions:
    1344/3136 + 882/3136 = 1344 + 882/3136 = 2226/3136
  5. 2226/3136 simplified gives 159/224
  6. So, 21/49 + 18/64 = 159/224

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