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Add 1/21 and 3/10

1/21 + 3/10 is 73/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 10 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    1/21 = 1 × 10/21 × 10 = 10/210
  3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
    3/10 = 3 × 21/10 × 21 = 63/210
  4. Add the two like fractions:
    10/210 + 63/210 = 10 + 63/210 = 73/210
  5. So, 1/21 + 3/10 = 73/210

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