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Add 21/54 and 6/10

21/54 + 6/10 is 89/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 10 is 270
  2. For the 1st fraction, since 54 × 5 = 270,
    21/54 = 21 × 5/54 × 5 = 105/270
  3. Likewise, for the 2nd fraction, since 10 × 27 = 270,
    6/10 = 6 × 27/10 × 27 = 162/270
  4. Add the two fractions:
    105/270 + 162/270 = 105 + 162/270 = 267/270
  5. After reducing the fraction, the answer is 89/90

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