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Add 15/42 and 24/30

15/42 + 24/30 is 81/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 42 × 5 = 210,
    15/42 = 15 × 5/42 × 5 = 75/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    24/30 = 24 × 7/30 × 7 = 168/210
  4. Add the two like fractions:
    75/210 + 168/210 = 75 + 168/210 = 243/210
  5. 243/210 simplified gives 81/70
  6. So, 15/42 + 24/30 = 81/70
    In mixed form: 111/70

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