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Add 24/28 and 42/90

24/28 + 42/90 is 139/105.

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,
    24/28 = 24 × 45/28 × 45 = 1080/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    42/90 = 42 × 14/90 × 14 = 588/1260
  4. Add the two fractions:
    1080/1260 + 588/1260 = 1080 + 588/1260 = 1668/1260
  5. 1668/1260 simplified gives 139/105
  6. So, 24/28 + 42/90 = 139/105
    In mixed form: 134/105

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