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Add 7/80 and 21/54

7/80 + 21/54 is 343/720.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 54 is 2160

    Next, find the equivalent fraction of both fractional numbers with denominator 2160
  2. For the 1st fraction, since 80 × 27 = 2160,
    7/80 = 7 × 27/80 × 27 = 189/2160
  3. Likewise, for the 2nd fraction, since 54 × 40 = 2160,
    21/54 = 21 × 40/54 × 40 = 840/2160
  4. Add the two like fractions:
    189/2160 + 840/2160 = 189 + 840/2160 = 1029/2160
  5. 1029/2160 simplified gives 343/720
  6. So, 7/80 + 21/54 = 343/720

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