Cindy has two fourths of a circle and three tenths of a circle. What does she need to make a whole circle?
215+36=251
0.2
To determine what Cindy needs to make a whole circle, we need to find the total sum of the two fourths and three tenths.
Step 1: Convert the fractions to a common denominator.
The common denominator for fourths and tenths is 20.
Two fourths of a circle is equal to (2/4) * 20 = 10/20.
Three tenths of a circle is equal to (3/10) * 20 = 6/20.
Step 2: Add the fractions together.
Total = 10/20 + 6/20 = 16/20.
Step 3: Simplify the fraction, if possible.
The fraction 16/20 can be simplified by dividing both the numerator and the denominator by their greatest common divisor, which is 4.
Simplified, the fraction becomes 4/5.
Therefore, to make a whole circle, Cindy needs another (4/5) of a circle.
To determine what Cindy needs to make a whole circle, we need to calculate the total fraction of the circle she already has and then subtract it from one whole circle (1).
First, we need to convert the fractions to a common denominator. In this case, the common denominator would be 20.
Two fourths of a circle can be written as 10 twentieths (2/4 * 20/1 = 10/20).
Three tenths of a circle can be written as 6 twentieths (3/10 * 20/1 = 6/20).
Next, we add the fractions together: 10/20 + 6/20 = 16/20.
To find out what Cindy needs to make a whole circle, we subtract the total fraction she already has from one whole circle.
1 - 16/20 = 4/20.
Therefore, Cindy needs 4 twentieths (or 1/5) of a circle to make a whole circle.