1/5 of 15 = 3
One fifth of the number 15 is calculated by dividing 15 by 5. This equals 3. Therefore, one fifth of 15 is 3.
It is: 1/5 of 15 = 3
To add one fifteenth (1/15) and one fifth (1/5), first convert one fifth to have a common denominator of 15. One fifth is equivalent to three fifteenths (3/15). Therefore, 1/15 + 3/15 equals 4/15.
The fifth triangular number is 15
The phrase "whole ones of 15 fifth" can be interpreted as asking for how many whole "fifths" are in the number 15. Since a "fifth" represents one-fifth (1/5) of a whole, you can calculate it by dividing 15 by 1/5, which is the same as multiplying 15 by 5. Therefore, there are 75 whole fifths in 15.
To subtract one fifth from two thirds, first find a common denominator, which is 15. Two thirds is equivalent to 10/15, and one fifth is equivalent to 3/15. Subtracting these gives you 10/15 - 3/15 = 7/15. Therefore, two thirds subtract one fifth equals 7/15.
The fifth triangle number, known as T5 is 15.
Starting with 1, it is 15.
4/5 of 15 is 12.
15
3
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