Answer:
Math, History, Science
Step-by-step explanation:
Math notebook: [tex]\frac{1}{2} = \frac{4}{8}[/tex]
Science notebook: [tex]\frac{7}{8}[/tex]
History notebook: [tex]\frac{3}{4} =\frac{6}{8}[/tex]
Math is the least heaviest.
History is in the middle.
Science weighs the most.