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Add 3/15 and 21/14

1st number: 3/15, 2nd number: 1 7/14

3/15 + 21/14 is 17/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 14 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 15 × 14 = 210,
    3/15 = 3 × 14/15 × 14 = 42/210
  3. Likewise, for the 2nd fraction, since 14 × 15 = 210,
    21/14 = 21 × 15/14 × 15 = 315/210
  4. Add the two like fractions:
    42/210 + 315/210 = 42 + 315/210 = 357/210
  5. 357/210 simplified gives 17/10
  6. So, 3/15 + 21/14 = 17/10
    In mixed form: 17/10

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