Answer:
4/10
Explanation:
To find out how much more glue Mai needs, we need to subtract the amount of glue she already has from the total amount she needs:
Total amount of glue needed - Amount of glue Mai already has = Amount of glue Mai still needs
The total amount of glue Mai needs is 7/10 pints, and the amount she already has is 3/10 pints:
7/10 - 3/10 = 4/10
Therefore, Mai still needs 4/10 pints of glue to complete her art project, which can be simplified to 2/5.