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Add 5/56 and 12/90

5/56 + 12/90 is 187/840.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 90 is 2520
  2. For the 1st fraction, since 56 × 45 = 2520,
    5/56 = 5 × 45/56 × 45 = 225/2520
  3. Likewise, for the 2nd fraction, since 90 × 28 = 2520,
    12/90 = 12 × 28/90 × 28 = 336/2520
  4. Add the two fractions:
    225/2520 + 336/2520 = 225 + 336/2520 = 561/2520
  5. 561/2520 simplified gives 187/840
  6. So, 5/56 + 12/90 = 187/840

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