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Add 30/10 and 10/21

1st number: 3 0/10, 2nd number: 10/21

30/10 + 10/21 is 73/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 21 is 210
  2. For the 1st fraction, since 10 × 21 = 210,
    30/10 = 30 × 21/10 × 21 = 630/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    10/21 = 10 × 10/21 × 10 = 100/210
  4. Add the two fractions:
    630/210 + 100/210 = 630 + 100/210 = 730/210
  5. After reducing the fraction, the answer is 73/21
  6. In mixed form: 310/21

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