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Add 6/72 and 21/80

6/72 + 21/80 is 83/240.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 72 × 10 = 720,
    6/72 = 6 × 10/72 × 10 = 60/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    21/80 = 21 × 9/80 × 9 = 189/720
  4. Add the two like fractions:
    60/720 + 189/720 = 60 + 189/720 = 249/720
  5. 249/720 simplified gives 83/240
  6. So, 6/72 + 21/80 = 83/240

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