Border Patrol Practice Exam

What is the result of subtracting 1/3 from 4/5?

9/15 7/15 11/15 12/15

Correct Answer:

7/15

Explanation:

To find the result of subtracting 1/3 from 4/5, it's important to have a common denominator for the fractions involved. The denominators are 5 and 3. The least common multiple of 5 and 3 is 15. When converting 4/5 to a fraction with a denominator of 15, you multiply both the numerator and the denominator by 3, resulting in 12/15. For 1/3, you multiply both the numerator and the denominator by 5, resulting in 5/15. Now, you perform the subtraction: 12/15 - 5/15 = (12 - 5)/15 = 7/15. This shows that the result of subtracting 1/3 from 4/5 is indeed 7/15, making it the correct answer. Focusing on the concept of finding a common denominator is key in solving problems related to the addition or subtraction of fractions.

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