Practice problem

Least Common Multiple (LCM) — Definition & Examples

+1 contributors

Contributors

Alex Federspiel
Liza Sulkin

\text{National Graham Cracker Day}

===

Today (July $5$ ) is National Graham Cracker Day! You can celebrate this day by making your favorite recipe involving graham crackers!

Graham crackers and marshmallows. — Image by abigaildavidsm via Pixabay (CC0)

An average box of graham crackers contains $4$ cellophane wrapped pouches. Each pouch has $9$ sheets of graham crackers. Each sheet can be divided into $4$ pieces. $\\$ An average chocolate bar can be divided into $12$ pieces. $\\$ An average bag of marshmallows has $40$ marshmallows in it. To make s'mores you need $1$ sheet of graham cracker, $3$ pieces of chocolate, and $1$ marshmallow. You want to buy enough of each ingredient so that it all gets used and nothing is left over. How many boxes of graham crackers do you need to buy?