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Add 36/72 and 21/40

36/72 + 21/40 is 41/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    36/72 = 36 × 5/72 × 5 = 180/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    21/40 = 21 × 9/40 × 9 = 189/360
  4. Add the two like fractions:
    180/360 + 189/360 = 180 + 189/360 = 369/360
  5. 369/360 simplified gives 41/40
  6. So, 36/72 + 21/40 = 41/40
    In mixed form: 11/40

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