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Add 70/21 and 7/63

1st number: 3 7/21, 2nd number: 7/63

70/21 + 7/63 is 31/9.

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,
    70/21 = 70 × 3/21 × 3 = 210/63
  3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
    7/63 = 7 × 1/63 × 1 = 7/63
  4. Add the two like fractions:
    210/63 + 7/63 = 210 + 7/63 = 217/63
  5. 217/63 simplified gives 31/9
  6. So, 70/21 + 7/63 = 31/9
    In mixed form: 34/9

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