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Add 5/40 and 7/63

5/40 + 7/63 is 17/72.

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,
    5/40 = 5 × 63/40 × 63 = 315/2520
  3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
    7/63 = 7 × 40/63 × 40 = 280/2520
  4. Add the two fractions:
    315/2520 + 280/2520 = 315 + 280/2520 = 595/2520
  5. After reducing the fraction, the answer is 17/72

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