Question

how to write 3 years 4 months in the form of a mixed fraction in the lesson simple interest

Answer 1

you can write it as 3 1/3

Answer 2

we know that 4 months is 4 parts out of the 12 parts.
⇒ 4/12 ( we can make it into the simplest form also )
⇒ 1/3 ( this simplest form of 4/12 )
∴ 3 1/3 will be the mixed fraction.