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Add 25/80 and 21/28

25/80 + 21/28 is 17/16.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 28 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    25/80 = 25 × 7/80 × 7 = 175/560
  3. Likewise, for the 2nd fraction, since 28 × 20 = 560,
    21/28 = 21 × 20/28 × 20 = 420/560
  4. Add the two like fractions:
    175/560 + 420/560 = 175 + 420/560 = 595/560
  5. 595/560 simplified gives 17/16
  6. So, 25/80 + 21/28 = 17/16
    In mixed form: 11/16

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