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Add 4/15 and 18/70

4/15 + 18/70 is 11/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 70 is 210
  2. For the 1st fraction, since 15 × 14 = 210,
    4/15 = 4 × 14/15 × 14 = 56/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    18/70 = 18 × 3/70 × 3 = 54/210
  4. Add the two fractions:
    56/210 + 54/210 = 56 + 54/210 = 110/210
  5. After reducing the fraction, the answer is 11/21

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