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Add 6/40 and 12/63

6/40 + 12/63 is 143/420.

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,
    6/40 = 6 × 63/40 × 63 = 378/2520
  3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
    12/63 = 12 × 40/63 × 40 = 480/2520
  4. Add the two fractions:
    378/2520 + 480/2520 = 378 + 480/2520 = 858/2520
  5. 858/2520 simplified gives 143/420
  6. So, 6/40 + 12/63 = 143/420

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