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Add 10/21 and 60/63

10/21 + 60/63 is 10/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 63 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 21 × 3 = 63,
    10/21 = 10 × 3/21 × 3 = 30/63
  3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
    60/63 = 60 × 1/63 × 1 = 60/63
  4. Add the two like fractions:
    30/63 + 60/63 = 30 + 60/63 = 90/63
  5. 90/63 simplified gives 10/7
  6. So, 10/21 + 60/63 = 10/7
    In mixed form: 13/7

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