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Add 5/7 and 15/45

5/7 + 15/45 is 22/21.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 7 × 45 = 315,
    5/7 = 5 × 45/7 × 45 = 225/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    15/45 = 15 × 7/45 × 7 = 105/315
  4. Add the two like fractions:
    225/315 + 105/315 = 225 + 105/315 = 330/315
  5. 330/315 simplified gives 22/21
  6. So, 5/7 + 15/45 = 22/21
    In mixed form: 11/21

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