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Add 20/90 and 35/72

20/90 + 35/72 is 17/24.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 90 × 4 = 360,
    20/90 = 20 × 4/90 × 4 = 80/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    35/72 = 35 × 5/72 × 5 = 175/360
  4. Add the two like fractions:
    80/360 + 175/360 = 80 + 175/360 = 255/360
  5. 255/360 simplified gives 17/24
  6. So, 20/90 + 35/72 = 17/24

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