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Add 3/40 and 5/7

3/40 + 5/7 is 221/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 7 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 40 × 7 = 280,
    3/40 = 3 × 7/40 × 7 = 21/280
  3. Likewise, for the 2nd fraction, since 7 × 40 = 280,
    5/7 = 5 × 40/7 × 40 = 200/280
  4. Add the two like fractions:
    21/280 + 200/280 = 21 + 200/280 = 221/280
  5. So, 3/40 + 5/7 = 221/280

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