9/10 is already in its reduced terms
It doesn't reduce.
reduce something is to make the amount of something smaller. For example you can reduce your electric bill by unplugging the refrigerator.
Reduce refers to your usage of non-recycleable materials.
3 1/4 doesn't reduce
49
nine-tenths (9/10) equals 90%
Reduce the protection time provided by the gloves
Reduce in size; reduce physically. Make smaller.
Reduce
reduce fat
To reduce To reduce
Reduce your angry with meditate.
you can reduce it by stuff
reduce
You cannot reduce a-2.
You can reduce the waste by reducing the trash
Reduce