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Add 21/3 and 70/63

1st number: 7 0/3, 2nd number: 1 7/63

21/3 + 70/63 is 73/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 63 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 3 × 21 = 63,
    21/3 = 21 × 21/3 × 21 = 441/63
  3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
    70/63 = 70 × 1/63 × 1 = 70/63
  4. Add the two like fractions:
    441/63 + 70/63 = 441 + 70/63 = 511/63
  5. 511/63 simplified gives 73/9
  6. So, 21/3 + 70/63 = 73/9
    In mixed form: 81/9

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