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Add 15/28 and 27/80

15/28 + 27/80 is 489/560.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 80 is 560
  2. For the 1st fraction, since 28 × 20 = 560,
    15/28 = 15 × 20/28 × 20 = 300/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    27/80 = 27 × 7/80 × 7 = 189/560
  4. Add the two fractions:
    300/560 + 189/560 = 300 + 189/560 = 489/560
  5. So, 15/28 + 27/80 = 489/560

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