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Add 3/72 and 8/20

3/72 + 8/20 is 53/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 20 is 360
  2. For the 1st fraction, since 72 × 5 = 360,
    3/72 = 3 × 5/72 × 5 = 15/360
  3. Likewise, for the 2nd fraction, since 20 × 18 = 360,
    8/20 = 8 × 18/20 × 18 = 144/360
  4. Add the two fractions:
    15/360 + 144/360 = 15 + 144/360 = 159/360
  5. After reducing the fraction, the answer is 53/120

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