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Add 7/28 and 28/90

7/28 + 28/90 is 101/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 90 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 90 × 14 = 1260,
    28/90 = 28 × 14/90 × 14 = 392/1260
  4. Add the two fractions:
    315/1260 + 392/1260 = 315 + 392/1260 = 707/1260
  5. 707/1260 simplified gives 101/180
  6. So, 7/28 + 28/90 = 101/180

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