Question

I need help someone please help

Answer 1

=

Explanation:

you can spilt 10 9/10 - 1 7/10 into 10-1=9 and 9/10-7/10=2/10 and then add them back together for 9 2/10 which is equal to the other side, 9 2/10

Answer 2

The equal sign (=)

Explanation:

It makes sense, the left side is they ride side after subtracting