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Add 98/30 and 18/21

1st number: 3 8/30, 2nd number: 18/21

98/30 + 18/21 is 433/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 21 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    98/30 = 98 × 7/30 × 7 = 686/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    18/21 = 18 × 10/21 × 10 = 180/210
  4. Add the two like fractions:
    686/210 + 180/210 = 686 + 180/210 = 866/210
  5. 866/210 simplified gives 433/105
  6. So, 98/30 + 18/21 = 433/105
    In mixed form: 413/105

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