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Add 98/42 and 21/90

1st number: 2 14/42, 2nd number: 21/90

98/42 + 21/90 is 77/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 90 is 630
  2. For the 1st fraction, since 42 × 15 = 630,
    98/42 = 98 × 15/42 × 15 = 1470/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    21/90 = 21 × 7/90 × 7 = 147/630
  4. Add the two fractions:
    1470/630 + 147/630 = 1470 + 147/630 = 1617/630
  5. After reducing the fraction, the answer is 77/30
  6. In mixed form: 217/30

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