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Add 30/20 and 1/21

1st number: 1 10/20, 2nd number: 1/21

30/20 + 1/21 is 65/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 21 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    30/20 = 30 × 21/20 × 21 = 630/420
  3. Likewise, for the 2nd fraction, since 21 × 20 = 420,
    1/21 = 1 × 20/21 × 20 = 20/420
  4. Add the two like fractions:
    630/420 + 20/420 = 630 + 20/420 = 650/420
  5. 650/420 simplified gives 65/42
  6. So, 30/20 + 1/21 = 65/42
    In mixed form: 123/42

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