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Add 1/15 and 28/63

1/15 + 28/63 is 23/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 63 is 315
  2. For the 1st fraction, since 15 × 21 = 315,
    1/15 = 1 × 21/15 × 21 = 21/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    28/63 = 28 × 5/63 × 5 = 140/315
  4. Add the two fractions:
    21/315 + 140/315 = 21 + 140/315 = 161/315
  5. 161/315 simplified gives 23/45
  6. So, 1/15 + 28/63 = 23/45

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