To start, create an expression to represent the situation: -120 4/7 + 25 3/7
Since the diver goes up 25 3/7 from their current spot, you would add 25 3/7 to -120 4/7.
This expression would then simplify to -95 1/7 (first, you combine -120 and 25 since they have a fraction that share the same denominator, and then you combine -4/7 and 3/7). The diver's new elevation would be -95 1/7.
