To convert a decimal to a fraction, we need to write the decimal as a fraction with a denominator of 10, 100, 1000, or some other power of 10, and then simplify if possible.
In this case, we have:
124.8 = 1248/10
We can simplify this fraction by dividing both the numerator and denominator by their greatest common factor (GCF), which is 10:
1248/10 = (1248 ÷ 10) / (10 ÷ 10) = 124/1
Therefore, 124.8 as a fraction is 124/1 or simply 124.