Answer:
To divide a decimal by another decimal:
Move the decimal point in the divisor to the right until it is a whole number.
Move the decimal point in the dividend to the right by the same number of places as the decimal point was moved to make the divisor a whole number.
Then divide the new dividend by the new divisor
Example: 15 divided by 0.2
Let us multiply the 0.2 by 10, which shifts the decimal point out of the way:
0.2 × 10 = 2
But we must also do it to the 15:
15 × 10 = 150
So 15 ÷ 0.2 has become 150 ÷ 2 (they are both 10 times larger):
150 ÷ 2 = 75
And so the answer is:
15 ÷ 0.2 = 75
Example no.2
Divide 6.4 by 0.4
Let us just shift the decimal point one space for both:
move 1
6.4 right arrow 64
0.4 right arrow 4
6.4/0.4 is exactly the same as 64/4,
as we moved the decimal point of both numbers.
Now we can calculate:
64 / 4 = 16
So the answer is:
6.4 / 0.4 = 16
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Answers & Comments
Answer:
To divide a decimal by another decimal:
Move the decimal point in the divisor to the right until it is a whole number.
Move the decimal point in the dividend to the right by the same number of places as the decimal point was moved to make the divisor a whole number.
Then divide the new dividend by the new divisor
Example: 15 divided by 0.2
Let us multiply the 0.2 by 10, which shifts the decimal point out of the way:
0.2 × 10 = 2
But we must also do it to the 15:
15 × 10 = 150
So 15 ÷ 0.2 has become 150 ÷ 2 (they are both 10 times larger):
150 ÷ 2 = 75
And so the answer is:
15 ÷ 0.2 = 75
Example no.2
Divide 6.4 by 0.4
Let us just shift the decimal point one space for both:
move 1
6.4 right arrow 64
0.4 right arrow 4
move 1
6.4/0.4 is exactly the same as 64/4,
as we moved the decimal point of both numbers.
Now we can calculate:
64 / 4 = 16
So the answer is:
6.4 / 0.4 = 16