Question

robs tablet is fully charged he uses 1/12 of the charge playing games,5/12 of the charge reading, and 3/12 completing homework What of the charge remains on robs tablet

Answer 1

I think it is 3/12 in not fully sure though

Answer 2

3/12
1/12+ 5/12+ 3/12= 9/12
12/12-9/12=3/12