Final answer:
Nolan practices the piano for 7/5 hours each weekend.
Step-by-step explanation:
To find out how long Nolan practices each weekend, we need to add up the hours he practices on Saturday and Sunday. He practices for 1 2/5 hours on both days. To add these fractions, we first convert the mixed number 1 2/5 to an improper fraction, which is 7/5. We then add the fractions together, getting 7/5 + 7/5 = 14/5. Finally, we simplify the fraction by dividing the numerator and denominator by their greatest common factor, which is 2. So, we have 14/5 ÷ 2 = 7/5 hours. Therefore, Nolan practices for 7/5 hours each weekend.