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Add 9/42 and 28/60

9/42 + 28/60 is 143/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 60 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 42 × 10 = 420,
    9/42 = 9 × 10/42 × 10 = 90/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    28/60 = 28 × 7/60 × 7 = 196/420
  4. Add the two like fractions:
    90/420 + 196/420 = 90 + 196/420 = 286/420
  5. 286/420 simplified gives 143/210
  6. So, 9/42 + 28/60 = 143/210

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