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Add 2/5 and 7/20

2/5 + 7/20 is 3/4.

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,
    2/5 = 2 × 4/5 × 4 = 8/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    7/20 = 7 × 1/20 × 1 = 7/20
  4. Add the two like fractions:
    8/20 + 7/20 = 8 + 7/20 = 15/20
  5. 15/20 simplified gives 3/4
  6. So, 2/5 + 7/20 = 3/4

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