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Add 28/30 and 2/7

28/30 + 2/7 is 128/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 7 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    28/30 = 28 × 7/30 × 7 = 196/210
  3. Likewise, for the 2nd fraction, since 7 × 30 = 210,
    2/7 = 2 × 30/7 × 30 = 60/210
  4. Add the two like fractions:
    196/210 + 60/210 = 196 + 60/210 = 256/210
  5. 256/210 simplified gives 128/105
  6. So, 28/30 + 2/7 = 128/105
    In mixed form: 123/105

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