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Add 28/30 and 90/21

1st number: 28/30, 2nd number: 4 6/21

28/30 + 90/21 is 548/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 21 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 21 × 10 = 210,
    90/21 = 90 × 10/21 × 10 = 900/210
  4. Add the two like fractions:
    196/210 + 900/210 = 196 + 900/210 = 1096/210
  5. 1096/210 simplified gives 548/105
  6. So, 28/30 + 90/21 = 548/105
    In mixed form: 523/105

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