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Add 18/40 and 36/63

18/40 + 36/63 is 143/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 63 is 2520
  2. For the 1st fraction, since 40 × 63 = 2520,
    18/40 = 18 × 63/40 × 63 = 1134/2520
  3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
    36/63 = 36 × 40/63 × 40 = 1440/2520
  4. Add the two fractions:
    1134/2520 + 1440/2520 = 1134 + 1440/2520 = 2574/2520
  5. 2574/2520 simplified gives 143/140
  6. So, 18/40 + 36/63 = 143/140
    In mixed form: 13/140

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