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Add 2/21 and 56/80

2/21 + 56/80 is 167/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 80 is 1680
  2. For the 1st fraction, since 21 × 80 = 1680,
    2/21 = 2 × 80/21 × 80 = 160/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    56/80 = 56 × 21/80 × 21 = 1176/1680
  4. Add the two fractions:
    160/1680 + 1176/1680 = 160 + 1176/1680 = 1336/1680
  5. After reducing the fraction, the answer is 167/210

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