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Add 7/21 and 1/5

7/21 + 1/5 is 8/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 5 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 21 × 5 = 105,
    7/21 = 7 × 5/21 × 5 = 35/105
  3. Likewise, for the 2nd fraction, since 5 × 21 = 105,
    1/5 = 1 × 21/5 × 21 = 21/105
  4. Add the two like fractions:
    35/105 + 21/105 = 35 + 21/105 = 56/105
  5. 56/105 simplified gives 8/15
  6. So, 7/21 + 1/5 = 8/15

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