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Add 18/63 and 8/40

18/63 + 8/40 is 17/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 40 is 2520
  2. For the 1st fraction, since 63 × 40 = 2520,
    18/63 = 18 × 40/63 × 40 = 720/2520
  3. Likewise, for the 2nd fraction, since 40 × 63 = 2520,
    8/40 = 8 × 63/40 × 63 = 504/2520
  4. Add the two fractions:
    720/2520 + 504/2520 = 720 + 504/2520 = 1224/2520
  5. 1224/2520 simplified gives 17/35
  6. So, 18/63 + 8/40 = 17/35

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