To convert the mixed number 1 3/8 into decimal form, we first need to break it down. The number consists of a whole number (1) and a fraction (3/8).
1. Start by converting the fraction 3/8 into a decimal. To do this, we can divide 3 by 8. When you perform the division, you get: 3 ÷ 8 = 0.375.
2. Next, we add this decimal value to the whole number part. So, we take the whole number 1 and add 0.375:
1 + 0.375 = 1.375
Therefore, the decimal representation of the mixed number 1 3/8 is 1.375.