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Add 1/15 and 98/21

1st number: 1/15, 2nd number: 4 14/21

1/15 + 98/21 is 71/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 21 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 15 × 7 = 105,
    1/15 = 1 × 7/15 × 7 = 7/105
  3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
    98/21 = 98 × 5/21 × 5 = 490/105
  4. Add the two like fractions:
    7/105 + 490/105 = 7 + 490/105 = 497/105
  5. 497/105 simplified gives 71/15
  6. So, 1/15 + 98/21 = 71/15
    In mixed form: 411/15

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