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Add 20/56 and 9/90

20/56 + 9/90 is 16/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 90 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 56 × 45 = 2520,
    20/56 = 20 × 45/56 × 45 = 900/2520
  3. Likewise, for the 2nd fraction, since 90 × 28 = 2520,
    9/90 = 9 × 28/90 × 28 = 252/2520
  4. Add the two like fractions:
    900/2520 + 252/2520 = 900 + 252/2520 = 1152/2520
  5. 1152/2520 simplified gives 16/35
  6. So, 20/56 + 9/90 = 16/35

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