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Add 18/63 and 14/20

18/63 + 14/20 is 69/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 20 is 1260
  2. For the 1st fraction, since 63 × 20 = 1260,
    18/63 = 18 × 20/63 × 20 = 360/1260
  3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
    14/20 = 14 × 63/20 × 63 = 882/1260
  4. Add the two fractions:
    360/1260 + 882/1260 = 360 + 882/1260 = 1242/1260
  5. 1242/1260 simplified gives 69/70
  6. So, 18/63 + 14/20 = 69/70

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