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Add 21/40 and 25/36

21/40 + 25/36 is 439/360.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 36 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    21/40 = 21 × 9/40 × 9 = 189/360
  3. Likewise, for the 2nd fraction, since 36 × 10 = 360,
    25/36 = 25 × 10/36 × 10 = 250/360
  4. Add the two like fractions:
    189/360 + 250/360 = 189 + 250/360 = 439/360
  5. So, 21/40 + 25/36 = 439/360
    In mixed form: 179/360

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