Given the decimal above that is 3.4, number 3 is the whole number and 0.4 is part of a whole number 1. Therefore, to convert this into a fraction, this will become 3 4/10. Since 4/10 can still be simplified and both 4 and 10 are divisible by 2, this becomes 2/5, making this fraction 3 2/5. The simplest form of 3.4 would be 3 2/5. Hope that helps!
