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Add 21/7 and 98/18

1st number: 3 0/7, 2nd number: 5 8/18

21/7 + 98/18 is 76/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 18 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 7 × 18 = 126,
    21/7 = 21 × 18/7 × 18 = 378/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    98/18 = 98 × 7/18 × 7 = 686/126
  4. Add the two like fractions:
    378/126 + 686/126 = 378 + 686/126 = 1064/126
  5. 1064/126 simplified gives 76/9
  6. So, 21/7 + 98/18 = 76/9
    In mixed form: 84/9

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