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Last updated on March 3rd, 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 (number on the top) here, 21 represents how many parts out of the whole. The denominator (number below) shows how many parts make the whole, here it is 50. A decimal is a way to represent the number that is not whole, using a (.) or a decimal 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.
21/50 in decimals can be written as 0.42. It is a terminating decimal, showing it does not repeat infinitely.
To get 21/50 in decimal, we will use the division method. Here, as 21 is smaller than 50, we will take the help of the decimal method, which will give us 0.42. Let's see the step-by-step breakdown of the process:
Step 1: Identify the numerator and denominator because the numerator (21) will be taken as the dividend and the denominator (50) will be taken as the divisor.
Step 2: As 21 is smaller than 50, it can't be divided. Here, we will take the help of decimals. We will add 0 to the dividend, which will make 21 into 210 and add a decimal point in the quotient place.
Step 3: Now that it is 210, we can divide it by 50. Let's see how many times 50 makes 210.
Step 4: 50 goes into 210 four times, as 50 × 4 = 200. We will write 4 in the quotient place and subtract 200 from 210 to get 10.
Step 5: Bring down another 0 in the dividend place, making 10 into 100, and then repeat the division process.
Step 6: 50 goes into 100 exactly two times, as 50 × 2 = 100. We write 2 in the quotient place. Now we have no remainder. The division process concludes here.
The answer for 21/50 as a decimal is 0.42.