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Add 90/20 and 5/28

1st number: 4 10/20, 2nd number: 5/28

90/20 + 5/28 is 131/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 28 is 140
  2. For the 1st fraction, since 20 × 7 = 140,
    90/20 = 90 × 7/20 × 7 = 630/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    5/28 = 5 × 5/28 × 5 = 25/140
  4. Add the two fractions:
    630/140 + 25/140 = 630 + 25/140 = 655/140
  5. After reducing the fraction, the answer is 131/28
  6. In mixed form: 419/28

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