Question

What is 3 1/5 * 2 1/4

Answer 1

To multiply two mixed numbers, one way to do it is to convert them into pure fractions and then multiply them:

`3\text{ 1/5}\cdot2\text{ 1/4}=(3+(1)/(5))\cdot(2+(1)/(4))=((15+1)/(5))\cdot((8+1)/(4))=(16)/(5)\cdot(9)/(4)=(144)/(20)=(36)/(5)`

The product is 36/5, that can be expressed as mixed number as:

`(36)/(5)=(35+1)/(5)=7+(1)/(5)`

Answer: The product (3 1/5 * 2 1/4) is 36/5 or 7 1/5.