Question

express in decimal form 9.7127 ×10^-4
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Answer 1

Answer:

4/10 is written as a decimal number 0.4

Step-by-step explanation:

Method 1: Writing 4/10 as a decimal using the division method

To convert any fraction to decimal form, we just need to divide its numerator by denominator.

Here, the fraction is 4/10 which means we need to perform 4 ÷ 10

Since the numerator is less than the denominator, we will perform 90/10 which is equal to 9

4/10 = (40/10) ÷ 10 = 0.4

This gives the answer as 0.4. So, 4/10 as a decimal is 0.4

Method 2: Writing 4/10 as a decimal by converting the denominator to powers of 10

Step 1: Find a number such that we can multiply by the denominator of the fraction to make it 10 or 100 or 1000 and so on.

Step 2: Multiply both numerator and denominator by that number to convert it into it's an equivalent fraction.

Step 3: Then write down just the numerator, putting the decimal point in the correct place, that is, one space from the right-hand side for every zero in the denominator.

4/10 = (4 × 1) / (10 × 1) = 4/10 = 0.4

Irrespective of the methods used, the answer to 4/10 as a decimal will always remain the same.

You can also verify your answer using Cuemath's Fraction to Decimal Calculator.

Thus, 4/10 as a decimal is 0.4