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Add 18/63 and 4/80

18/63 + 4/80 is 47/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 80 is 5040
  2. For the 1st fraction, since 63 × 80 = 5040,
    18/63 = 18 × 80/63 × 80 = 1440/5040
  3. Likewise, for the 2nd fraction, since 80 × 63 = 5040,
    4/80 = 4 × 63/80 × 63 = 252/5040
  4. Add the two fractions:
    1440/5040 + 252/5040 = 1440 + 252/5040 = 1692/5040
  5. 1692/5040 simplified gives 47/140
  6. So, 18/63 + 4/80 = 47/140

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