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Add 27/60 and 30/63

27/60 + 30/63 is 389/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 63 is 1260
  2. For the 1st fraction, since 60 × 21 = 1260,
    27/60 = 27 × 21/60 × 21 = 567/1260
  3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
    30/63 = 30 × 20/63 × 20 = 600/1260
  4. Add the two fractions:
    567/1260 + 600/1260 = 567 + 600/1260 = 1167/1260
  5. After reducing the fraction, the answer is 389/420

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