Adding Fractions with Unlike Denominators

123456
Across
  1. 2. 5/16 + 2/8
  2. 4. 3/20 + 2/5
  3. 5. 1/8 + 1/2
  4. 6. 1/3 + 5/12
Down
  1. 1. 2/3 + 1/6
  2. 2. 3/18 + 2/6
  3. 3. 1/4 + 12/20
  4. 5. 1/4 + 2/12