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Add 1/21 and 90/64

1st number: 1/21, 2nd number: 1 26/64

1/21 + 90/64 is 977/672.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 64 is 1344

    Next, find the equivalent fraction of both fractional numbers with denominator 1344
  2. For the 1st fraction, since 21 × 64 = 1344,
    1/21 = 1 × 64/21 × 64 = 64/1344
  3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
    90/64 = 90 × 21/64 × 21 = 1890/1344
  4. Add the two like fractions:
    64/1344 + 1890/1344 = 64 + 1890/1344 = 1954/1344
  5. 1954/1344 simplified gives 977/672
  6. So, 1/21 + 90/64 = 977/672
    In mixed form: 1305/672

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