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Add 21/72 and 40/50

21/72 + 40/50 is 131/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 50 is 1800

    Next, find the equivalent fraction of both fractional numbers with denominator 1800
  2. For the 1st fraction, since 72 × 25 = 1800,
    21/72 = 21 × 25/72 × 25 = 525/1800
  3. Likewise, for the 2nd fraction, since 50 × 36 = 1800,
    40/50 = 40 × 36/50 × 36 = 1440/1800
  4. Add the two like fractions:
    525/1800 + 1440/1800 = 525 + 1440/1800 = 1965/1800
  5. 1965/1800 simplified gives 131/120
  6. So, 21/72 + 40/50 = 131/120
    In mixed form: 111/120

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