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Add 20/5 and 25/20

1st number: 4 0/5, 2nd number: 1 5/20

20/5 + 25/20 is 21/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 20 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 5 × 4 = 20,
    20/5 = 20 × 4/5 × 4 = 80/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    25/20 = 25 × 1/20 × 1 = 25/20
  4. Add the two like fractions:
    80/20 + 25/20 = 80 + 25/20 = 105/20
  5. 105/20 simplified gives 21/4
  6. So, 20/5 + 25/20 = 21/4
    In mixed form: 51/4

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