**Lesson Steps**:

Since the number has 3 decimal places, multiply and divide it the number by 1000.

We'll get

125/1000

Dividing numerator and denominator by 5,

25/200

Again dividing by 5,

5/40

Again dividing by 5,

1/8

This cannot be factorized any further. Hence the answer is 1/8.

**Answer**:

1/8

**Grade**: 6

**Level**: Junior high

**Subject**: Math

**Topic**: Fractions