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Add 12/45 and 70/20

1st number: 12/45, 2nd number: 3 10/20

12/45 + 70/20 is 113/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    12/45 = 12 × 4/45 × 4 = 48/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    70/20 = 70 × 9/20 × 9 = 630/180
  4. Add the two like fractions:
    48/180 + 630/180 = 48 + 630/180 = 678/180
  5. 678/180 simplified gives 113/30
  6. So, 12/45 + 70/20 = 113/30
    In mixed form: 323/30

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