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Add 4/5 and 21/56

4/5 + 21/56 is 47/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 56 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 5 × 56 = 280,
    4/5 = 4 × 56/5 × 56 = 224/280
  3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
    21/56 = 21 × 5/56 × 5 = 105/280
  4. Add the two like fractions:
    224/280 + 105/280 = 224 + 105/280 = 329/280
  5. 329/280 simplified gives 47/40
  6. So, 4/5 + 21/56 = 47/40
    In mixed form: 17/40

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