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Add 15/21 and 1/60

15/21 + 1/60 is 307/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 60 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 21 × 20 = 420,
    15/21 = 15 × 20/21 × 20 = 300/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    1/60 = 1 × 7/60 × 7 = 7/420
  4. Add the two like fractions:
    300/420 + 7/420 = 300 + 7/420 = 307/420
  5. So, 15/21 + 1/60 = 307/420

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