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Add 64/10 and 21/54

1st number: 6 4/10, 2nd number: 21/54

64/10 + 21/54 is 611/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 10 × 27 = 270,
    64/10 = 64 × 27/10 × 27 = 1728/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    21/54 = 21 × 5/54 × 5 = 105/270
  4. Add the two like fractions:
    1728/270 + 105/270 = 1728 + 105/270 = 1833/270
  5. 1833/270 simplified gives 611/90
  6. So, 64/10 + 21/54 = 611/90
    In mixed form: 671/90

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