Changing Mixed Number to Improper Fraction

write as an improper fraction
  4  1/2

• 9/2
• 9/5
• 9/3
• 9/5

write as an improper fraction  4  9/10

• 49/9
• 49/10
• 49/12
• 49/19

write as an improper fraction  5  3/4

• 23/9
• 21/4
• 23/4
• 23/5

write as an improper fraction  7  1/5

• 36/5
• 35/5
• 40/5
• 42/1

write as an improper fraction  2   2/3

• 8/3
• 16/3
• 8/2
• 16/2

write as an improper fraction  8  2/3

• 26/3
• 26/4
• 26/7
• 26/9

write as an improper fraction  6  1/3

• 13/3
• 18/3
• 19/3
• 12/3

write as an improper fraction  2  3/4

• 11/4
• 12/4
• 13/4
• 10/4

write as an improper fraction  9  1/10

• 91/10
• 97/10
• 90/10
• 99/10

write as an improper fraction  
   12  2/3

• 38/3
• 38/10
• 72/3
• 72/10