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Add 28/42 and 4/5

28/42 + 4/5 is 22/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 5 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 42 × 5 = 210,
    28/42 = 28 × 5/42 × 5 = 140/210
  3. Likewise, for the 2nd fraction, since 5 × 42 = 210,
    4/5 = 4 × 42/5 × 42 = 168/210
  4. Add the two like fractions:
    140/210 + 168/210 = 140 + 168/210 = 308/210
  5. 308/210 simplified gives 22/15
  6. So, 28/42 + 4/5 = 22/15
    In mixed form: 17/15

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