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Add 21/80 and 4/20

21/80 + 4/20 is 37/80.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 20 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    21/80 = 21 × 1/80 × 1 = 21/80
  3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
    4/20 = 4 × 4/20 × 4 = 16/80
  4. Add the two like fractions:
    21/80 + 16/80 = 21 + 16/80 = 37/80
  5. So, 21/80 + 4/20 = 37/80

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