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Add 21/15 and 35/14

1st number: 1 6/15, 2nd number: 2 7/14

21/15 + 35/14 is 39/10.

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,
    21/15 = 21 × 14/15 × 14 = 294/210
  3. Likewise, for the 2nd fraction, since 14 × 15 = 210,
    35/14 = 35 × 15/14 × 15 = 525/210
  4. Add the two like fractions:
    294/210 + 525/210 = 294 + 525/210 = 819/210
  5. 819/210 simplified gives 39/10
  6. So, 21/15 + 35/14 = 39/10
    In mixed form: 39/10

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