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Add 1/2 and 15/42

1/2 + 15/42 is 6/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 42 is 42
  2. For the 1st fraction, since 2 × 21 = 42,
    1/2 = 1 × 21/2 × 21 = 21/42
  3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
    15/42 = 15 × 1/42 × 1 = 15/42
  4. Add the two fractions:
    21/42 + 15/42 = 21 + 15/42 = 36/42
  5. 36/42 simplified gives 6/7
  6. So, 1/2 + 15/42 = 6/7

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