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Add 21/80 and 16/60

21/80 + 16/60 is 127/240.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 60 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 60 × 4 = 240,
    16/60 = 16 × 4/60 × 4 = 64/240
  4. Add the two fractions:
    63/240 + 64/240 = 63 + 64/240 = 127/240
  5. So, 21/80 + 16/60 = 127/240

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