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Add 3/72 and 8/90

3/72 + 8/90 is 47/360.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 90 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 90 × 4 = 360,
    8/90 = 8 × 4/90 × 4 = 32/360
  4. Add the two fractions:
    15/360 + 32/360 = 15 + 32/360 = 47/360

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