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Add 42/4 and 28/5

1st number: 10 2/4, 2nd number: 5 3/5

42/4 + 28/5 is 161/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 5 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 4 × 5 = 20,
    42/4 = 42 × 5/4 × 5 = 210/20
  3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
    28/5 = 28 × 4/5 × 4 = 112/20
  4. Add the two like fractions:
    210/20 + 112/20 = 210 + 112/20 = 322/20
  5. 322/20 simplified gives 161/10
  6. So, 42/4 + 28/5 = 161/10
    In mixed form: 161/10

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