Answer:Total hours worked by John in his garden=3 5/8 hours.
Step-by-step explanation:
Time spent planting =1 1 /2 hours planting
Time spent trimming = 2 1 /8 hours
Total hours worked by John in his garden= Time spent planting +Time spent trimming
=1 1/2 + 2 1/8( add whole numbers together and fractions together)
= 3 4+1 /8
3 5/8 hours.
