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Add 45/70 and 15/12

1st number: 45/70, 2nd number: 1 3/12

45/70 + 15/12 is 53/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 12 is 420
  2. For the 1st fraction, since 70 × 6 = 420,
    45/70 = 45 × 6/70 × 6 = 270/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    15/12 = 15 × 35/12 × 35 = 525/420
  4. Add the two fractions:
    270/420 + 525/420 = 270 + 525/420 = 795/420
  5. After reducing the fraction, the answer is 53/28
  6. In mixed form: 125/28

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