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Add 21/80 and 16/30

21/80 + 16/30 is 191/240.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 30 is 240
  2. For the 1st fraction, since 80 × 3 = 240,
    21/80 = 21 × 3/80 × 3 = 63/240
  3. Likewise, for the 2nd fraction, since 30 × 8 = 240,
    16/30 = 16 × 8/30 × 8 = 128/240
  4. Add the two fractions:
    63/240 + 128/240 = 63 + 128/240 = 191/240

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