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Add 7/20 and 12/63

7/20 + 12/63 is 227/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 63 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 20 × 63 = 1260,
    7/20 = 7 × 63/20 × 63 = 441/1260
  3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
    12/63 = 12 × 20/63 × 20 = 240/1260
  4. Add the two like fractions:
    441/1260 + 240/1260 = 441 + 240/1260 = 681/1260
  5. 681/1260 simplified gives 227/420
  6. So, 7/20 + 12/63 = 227/420

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