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Last updated on March 18th, 2025
It is a simple question on decimal conversion. Firstly, we have to learn fractions and decimals. A fraction represents a part of the whole. It has two parts: the numerator (the number on the top) here, 81 represents how many parts out of the whole. The denominator (the number below) shows how many parts make the whole, here it is 4. A decimal is a way to represent a number that is not whole, using a (.) or a decimal point to separate the whole part from the fractional part. The numbers to the left of the decimal point represent the whole, and those to the right represent the fractional part.
81/4 in decimals can be written as 20.25. It is a terminating decimal.
To get 81/4 in decimal, we will use the division method. Here 81 is divided by 4 to get 20.25. Let's see the step-by-step breakdown of the process:
Step 1: Identify the numerator and denominator because the numerator (81) will be taken as the dividend and the denominator (4) will be taken as the divisor.
Step 2: Divide 81 by 4. 4 goes into 81 a total of 20 times, since 4 × 20 = 80.
Step 3: Subtract 80 from 81, which gives us a remainder of 1.
Step 4: Since there is a remainder, we add a decimal point in the quotient and bring down a 0 to make it 10.
Step 5: 4 goes into 10 a total of 2 times, since 4 × 2 = 8. Subtract 8 from 10, leaving a remainder of 2.
Step 6: Bring down another 0 to make it 20. 4 goes into 20 exactly 5 times. The division process ends here as we get a remainder of 0.
The answer for 81/4 as a decimal is 20.25.