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Add 21/45 and 4/36

21/45 + 4/36 is 26/45.

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,
    21/45 = 21 × 4/45 × 4 = 84/180
  3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
    4/36 = 4 × 5/36 × 5 = 20/180
  4. Add the two fractions:
    84/180 + 20/180 = 84 + 20/180 = 104/180
  5. 104/180 simplified gives 26/45
  6. So, 21/45 + 4/36 = 26/45

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