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Add 15/70 and 10/30

15/70 + 10/30 is 23/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 30 is 210
  2. For the 1st fraction, since 70 × 3 = 210,
    15/70 = 15 × 3/70 × 3 = 45/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    10/30 = 10 × 7/30 × 7 = 70/210
  4. Add the two fractions:
    45/210 + 70/210 = 45 + 70/210 = 115/210
  5. After reducing the fraction, the answer is 23/42

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