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Add 15/28 and 3/70

15/28 + 3/70 is 81/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 70 is 140
  2. For the 1st fraction, since 28 × 5 = 140,
    15/28 = 15 × 5/28 × 5 = 75/140
  3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
    3/70 = 3 × 2/70 × 2 = 6/140
  4. Add the two fractions:
    75/140 + 6/140 = 75 + 6/140 = 81/140

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