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Add 42/10 and 1/20

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

42/10 + 1/20 is 17/4.

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,
    1/20 = 1 × 1/20 × 1 = 1/20
  4. Add the two like fractions:
    84/20 + 1/20 = 84 + 1/20 = 85/20
  5. 85/20 simplified gives 17/4
  6. So, 42/10 + 1/20 = 17/4
    In mixed form: 41/4

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