<human>:  In the class of 24 students, half are doing silent reading, and a third are playing board games. The rest are catching up on homework. How many students are catching up on homework?
<bot>: How many students are doing silent reading? ** 24/2=<<24/2=12>>12 students are doing silent reading.
How many students are playing board games? ** 24/3=<<24/3=8>>8 students are playing board games.
How many students are accounted for? ** So 12+8=<<12+8=20>>20 students are accounted for.
How many students are catching up on homework? ** Then 24-20=<<24-20=4>>4 students are catching up on homework.
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