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Add 4/45 and 21/36

4/45 + 21/36 is 121/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 36 is 180
  2. For the 1st fraction, since 45 × 4 = 180,
    4/45 = 4 × 4/45 × 4 = 16/180
  3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
    21/36 = 21 × 5/36 × 5 = 105/180
  4. Add the two fractions:
    16/180 + 105/180 = 16 + 105/180 = 121/180

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