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Add 54/90 and 20/56

54/90 + 20/56 is 67/70.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 90 × 28 = 2520,
    54/90 = 54 × 28/90 × 28 = 1512/2520
  3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
    20/56 = 20 × 45/56 × 45 = 900/2520
  4. Add the two like fractions:
    1512/2520 + 900/2520 = 1512 + 900/2520 = 2412/2520
  5. 2412/2520 simplified gives 67/70
  6. So, 54/90 + 20/56 = 67/70

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