Answer :

naǫ
[tex]\frac{21}{18}=\frac{7 \times 3}{6 \times 3}=\frac{7}{6}=\boxed{1 \frac{1}{6}}[/tex]
21/18= 1 1/6
How I did this:
21/18 is an improper fraction, so I thought how many times does 18 go into 21. (If you want you can divide.) It goes in once. 18×1=1, so then you subtract 21-18, the answer is 3. Then you put it over the 18. 3/18 you can reduce to 1/6 (Because 3÷3=1 and 3÷18=6. Hope I helped!