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Add 7/28 and 4/45

7/28 + 4/45 is 61/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 45 is 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    7/28 = 7 × 45/28 × 45 = 315/1260
  3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
    4/45 = 4 × 28/45 × 28 = 112/1260
  4. Add the two fractions:
    315/1260 + 112/1260 = 315 + 112/1260 = 427/1260
  5. After reducing the fraction, the answer is 61/180

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