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Add 42/40 and 12/63

1st number: 1 2/40, 2nd number: 12/63

42/40 + 12/63 is 521/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 63 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 40 × 63 = 2520,
    42/40 = 42 × 63/40 × 63 = 2646/2520
  3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
    12/63 = 12 × 40/63 × 40 = 480/2520
  4. Add the two like fractions:
    2646/2520 + 480/2520 = 2646 + 480/2520 = 3126/2520
  5. 3126/2520 simplified gives 521/420
  6. So, 42/40 + 12/63 = 521/420
    In mixed form: 1101/420

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