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Add 2/5 and 21/56

2/5 + 21/56 is 31/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 56 is 280
  2. For the 1st fraction, since 5 × 56 = 280,
    2/5 = 2 × 56/5 × 56 = 112/280
  3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
    21/56 = 21 × 5/56 × 5 = 105/280
  4. Add the two fractions:
    112/280 + 105/280 = 112 + 105/280 = 217/280
  5. After reducing the fraction, the answer is 31/40

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