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528 LearnersLast updated on August 5, 2025


21/100 in decimal form can be written as 0.21. It is a terminating decimal, meaning it does not repeat infinitely.
To convert 21/100 to a decimal, we will use the division method. Since 21 is smaller than 100, we will use the decimal method, which will give us 0.21. 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 (100) will be taken as the divisor.
Step 2: As 21 is smaller than 100, it can't be divided to give a whole number quotient directly, so we will use decimals.
Step 3: By adding a decimal point in the quotient, we can proceed with the division, turning the situation into 210 being divided by 100.
Step 4: 100 goes into 210 two times, so 2 is written in the quotient place, which makes 2 × 100 = 200. Subtracting 200 from 210 gives 10.
Step 5: Bring down another 0 in the dividend place to make it 100, and repeat the division process.
Step 6: 100 goes into 100 exactly once. Write 1 in the quotient place. Now, since the remainder is 0, the process stops here.
The answer for 21/100 as a decimal is 0.21.
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