Add −1 3/10 + 2/5 using the number line.
Select the location on the number line to plot the sum.

Answer:
-9/10 (in between -1 and -4/5)
Step-by-step explanation:
-1 3/10+2/5
-1 3/10 + 4/10
-13/10+4/10
13/10-4/10=9/10
then put the negative sign in front of the 9/10.
(please give brainliest)