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Add 20/8 and 42/10

1st number: 2 4/8, 2nd number: 4 2/10

20/8 + 42/10 is 67/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 10 is 40
  2. For the 1st fraction, since 8 × 5 = 40,
    20/8 = 20 × 5/8 × 5 = 100/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    42/10 = 42 × 4/10 × 4 = 168/40
  4. Add the two fractions:
    100/40 + 168/40 = 100 + 168/40 = 268/40
  5. After reducing the fraction, the answer is 67/10
  6. In mixed form: 67/10

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