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Add 2/5 and 20/90

2/5 + 20/90 is 28/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 90 is 90
  2. For the 1st fraction, since 5 × 18 = 90,
    2/5 = 2 × 18/5 × 18 = 36/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    20/90 = 20 × 1/90 × 1 = 20/90
  4. Add the two fractions:
    36/90 + 20/90 = 36 + 20/90 = 56/90
  5. After reducing the fraction, the answer is 28/45

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