To write 0.375 as a fraction, start by recognizing that this decimal can be expressed as a fraction with a denominator of 1000. Since there are three digits after the decimal point, we can write it as:
0.375 = 375/1000
Next, we need to simplify this fraction. Both the numerator (375) and the denominator (1000) can be divided by their greatest common divisor, which is 125:
375 ÷ 125 = 3
1000 ÷ 125 = 8
So, when we simplify 375/1000, we get:
3/8
Therefore, 0.375 can be expressed as the fraction 3/8.