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Add 3/45 and 15/20

3/45 + 15/20 is 49/60.

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,
    3/45 = 3 × 4/45 × 4 = 12/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    15/20 = 15 × 9/20 × 9 = 135/180
  4. Add the two like fractions:
    12/180 + 135/180 = 12 + 135/180 = 147/180
  5. 147/180 simplified gives 49/60
  6. So, 3/45 + 15/20 = 49/60

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