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Add 9/30 and 15/42

9/30 + 15/42 is 23/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 42 is 210
  2. For the 1st fraction, since 30 × 7 = 210,
    9/30 = 9 × 7/30 × 7 = 63/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    15/42 = 15 × 5/42 × 5 = 75/210
  4. Add the two fractions:
    63/210 + 75/210 = 63 + 75/210 = 138/210
  5. 138/210 simplified gives 23/35
  6. So, 9/30 + 15/42 = 23/35

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