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Add 24/21 and 42/20

1st number: 1 3/21, 2nd number: 2 2/20

24/21 + 42/20 is 227/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 20 is 420
  2. For the 1st fraction, since 21 × 20 = 420,
    24/21 = 24 × 20/21 × 20 = 480/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    42/20 = 42 × 21/20 × 21 = 882/420
  4. Add the two fractions:
    480/420 + 882/420 = 480 + 882/420 = 1362/420
  5. After reducing the fraction, the answer is 227/70
  6. In mixed form: 317/70

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