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Add 5/40 and 21/63

5/40 + 21/63 is 11/24.

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,
    21/63 = 21 × 40/63 × 40 = 840/2520
  4. Add the two fractions:
    315/2520 + 840/2520 = 315 + 840/2520 = 1155/2520
  5. 1155/2520 simplified gives 11/24
  6. So, 5/40 + 21/63 = 11/24

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