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Add 5/20 and 90/28

1st number: 5/20, 2nd number: 3 6/28

5/20 + 90/28 is 97/28.

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,
    5/20 = 5 × 7/20 × 7 = 35/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    90/28 = 90 × 5/28 × 5 = 450/140
  4. Add the two fractions:
    35/140 + 450/140 = 35 + 450/140 = 485/140
  5. 485/140 simplified gives 97/28
  6. So, 5/20 + 90/28 = 97/28
    In mixed form: 313/28

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