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Add 42/10 and 3/20

1st number: 4 2/10, 2nd number: 3/20

42/10 + 3/20 is 87/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 20 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 10 × 2 = 20,
    42/10 = 42 × 2/10 × 2 = 84/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    3/20 = 3 × 1/20 × 1 = 3/20
  4. Add the two like fractions:
    84/20 + 3/20 = 84 + 3/20 = 87/20
  5. So, 42/10 + 3/20 = 87/20
    In mixed form: 47/20

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