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Add 30/21 and 70/72

1st number: 1 9/21, 2nd number: 70/72

30/21 + 70/72 is 605/252.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 21 × 24 = 504,
    30/21 = 30 × 24/21 × 24 = 720/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    70/72 = 70 × 7/72 × 7 = 490/504
  4. Add the two like fractions:
    720/504 + 490/504 = 720 + 490/504 = 1210/504
  5. 1210/504 simplified gives 605/252
  6. So, 30/21 + 70/72 = 605/252
    In mixed form: 2101/252

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