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Add 30/45 and 5/7

30/45 + 5/7 is 29/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 7 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 45 × 7 = 315,
    30/45 = 30 × 7/45 × 7 = 210/315
  3. Likewise, for the 2nd fraction, since 7 × 45 = 315,
    5/7 = 5 × 45/7 × 45 = 225/315
  4. Add the two like fractions:
    210/315 + 225/315 = 210 + 225/315 = 435/315
  5. 435/315 simplified gives 29/21
  6. So, 30/45 + 5/7 = 29/21
    In mixed form: 18/21

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