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Add 20/40 and 49/63

20/40 + 49/63 is 23/18.

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,
    20/40 = 20 × 63/40 × 63 = 1260/2520
  3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
    49/63 = 49 × 40/63 × 40 = 1960/2520
  4. Add the two fractions:
    1260/2520 + 1960/2520 = 1260 + 1960/2520 = 3220/2520
  5. After reducing the fraction, the answer is 23/18
  6. In mixed form: 15/18

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