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Add 10/18 and 21/56

10/18 + 21/56 is 67/72.

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,
    10/18 = 10 × 28/18 × 28 = 280/504
  3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
    21/56 = 21 × 9/56 × 9 = 189/504
  4. Add the two like fractions:
    280/504 + 189/504 = 280 + 189/504 = 469/504
  5. 469/504 simplified gives 67/72
  6. So, 10/18 + 21/56 = 67/72

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