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Add 9/18 and 21/56

9/18 + 21/56 is 7/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 56 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 18 × 28 = 504,
    9/18 = 9 × 28/18 × 28 = 252/504
  3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
    21/56 = 21 × 9/56 × 9 = 189/504
  4. Add the two like fractions:
    252/504 + 189/504 = 252 + 189/504 = 441/504
  5. 441/504 simplified gives 7/8
  6. So, 9/18 + 21/56 = 7/8

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