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Add 21/56 and 5/18

21/56 + 5/18 is 47/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 18 is 504
  2. For the 1st fraction, since 56 × 9 = 504,
    21/56 = 21 × 9/56 × 9 = 189/504
  3. Likewise, for the 2nd fraction, since 18 × 28 = 504,
    5/18 = 5 × 28/18 × 28 = 140/504
  4. Add the two fractions:
    189/504 + 140/504 = 189 + 140/504 = 329/504
  5. After reducing the fraction, the answer is 47/72

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