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Add 36/60 and 21/80

36/60 + 21/80 is 69/80.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 80 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 60 × 4 = 240,
    36/60 = 36 × 4/60 × 4 = 144/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    21/80 = 21 × 3/80 × 3 = 63/240
  4. Add the two like fractions:
    144/240 + 63/240 = 144 + 63/240 = 207/240
  5. 207/240 simplified gives 69/80
  6. So, 36/60 + 21/80 = 69/80

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