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Add 15/42 and 3/10

15/42 + 3/10 is 23/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 10 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 10 × 21 = 210,
    3/10 = 3 × 21/10 × 21 = 63/210
  4. Add the two like fractions:
    75/210 + 63/210 = 75 + 63/210 = 138/210
  5. 138/210 simplified gives 23/35
  6. So, 15/42 + 3/10 = 23/35

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