Question

Question 3 of 10

Which expression is equivalent to 21/15 - 915?
OA. 12
B. 30 15
C. 123/5
D. 12/15

Answer 1

To simplify the expression 21/15 - 915, find a common denominator, rewrite 21/15 as 3/5, subtract the numerators, resulting in -912/15.

Step-by-step explanation:

To simplify the expression 21/15 - 915, we first need to find a common denominator for the fractions. Since 15 is a factor of both 15 and 915, we can use it as the common denominator. We can then rewrite 21/15 as 3/5. So, the expression becomes 3/5 - 915/15.

To subtract fractions, we need to have the same denominator. In this case, both fractions already have the same denominator, 15. Now we can subtract the numerators: 3 - 915 = -912. So, the expression simplifies to -912/15.

Therefore, the expression equivalent to 21/15 - 915 is -912/15.

Learn more about Expression simplification