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Add 30/21 and 60/45

1st number: 1 9/21, 2nd number: 1 15/45

30/21 + 60/45 is 58/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 45 is 315
  2. For the 1st fraction, since 21 × 15 = 315,
    30/21 = 30 × 15/21 × 15 = 450/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    60/45 = 60 × 7/45 × 7 = 420/315
  4. Add the two fractions:
    450/315 + 420/315 = 450 + 420/315 = 870/315
  5. After reducing the fraction, the answer is 58/21
  6. In mixed form: 216/21

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