Answer:
He has 1 7/12kg of plant food left.
Step-by-step explanation:
How much plant food did he use?
because:1 2/3 + 1/4
and than...5/3 + 1/4
20/12 + 3/12 = 23/12
How much does he have left?
3 1/2 - 23/12
7/2 - 23/12
42/12 - 23/12 = 19/12 = 1 7/12kg left
I hope this helps have a great day.
