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Add 80/15 and 21/42

1st number: 5 5/15, 2nd number: 21/42

80/15 + 21/42 is 35/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 42 is 210
  2. For the 1st fraction, since 15 × 14 = 210,
    80/15 = 80 × 14/15 × 14 = 1120/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    21/42 = 21 × 5/42 × 5 = 105/210
  4. Add the two fractions:
    1120/210 + 105/210 = 1120 + 105/210 = 1225/210
  5. 1225/210 simplified gives 35/6
  6. So, 80/15 + 21/42 = 35/6
    In mixed form: 55/6

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