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Add 63/10 and 18/21

1st number: 6 3/10, 2nd number: 18/21

63/10 + 18/21 is 501/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 21 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 10 × 21 = 210,
    63/10 = 63 × 21/10 × 21 = 1323/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    18/21 = 18 × 10/21 × 10 = 180/210
  4. Add the two like fractions:
    1323/210 + 180/210 = 1323 + 180/210 = 1503/210
  5. 1503/210 simplified gives 501/70
  6. So, 63/10 + 18/21 = 501/70
    In mixed form: 711/70

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