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Add 3/18 and 25/70

3/18 + 25/70 is 11/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 70 is 630
  2. For the 1st fraction, since 18 × 35 = 630,
    3/18 = 3 × 35/18 × 35 = 105/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    25/70 = 25 × 9/70 × 9 = 225/630
  4. Add the two fractions:
    105/630 + 225/630 = 105 + 225/630 = 330/630
  5. 330/630 simplified gives 11/21
  6. So, 3/18 + 25/70 = 11/21

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