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Add 9/20 and 45/63

9/20 + 45/63 is 163/140.

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,
    9/20 = 9 × 63/20 × 63 = 567/1260
  3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
    45/63 = 45 × 20/63 × 20 = 900/1260
  4. Add the two like fractions:
    567/1260 + 900/1260 = 567 + 900/1260 = 1467/1260
  5. 1467/1260 simplified gives 163/140
  6. So, 9/20 + 45/63 = 163/140
    In mixed form: 123/140

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