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Add 5/21 and 30/20

1st number: 5/21, 2nd number: 1 10/20

5/21 + 30/20 is 73/42.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 21 × 20 = 420,
    5/21 = 5 × 20/21 × 20 = 100/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    30/20 = 30 × 21/20 × 21 = 630/420
  4. Add the two like fractions:
    100/420 + 630/420 = 100 + 630/420 = 730/420
  5. 730/420 simplified gives 73/42
  6. So, 5/21 + 30/20 = 73/42
    In mixed form: 131/42

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