Fractions Crossword

1234567
Across
  1. 2. 1/5×25
  2. 5. 5/10+5/10
  3. 6. 7/10-5/10
Down
  1. 1. 1/9×81
  2. 3. 1/3×24
  3. 4. 1/4×16
  4. 7. 1/5×5