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PLEASE HELP!!!! Identify the mistake and use the correct answer to the problem!!!

PLEASE HELP!!!! Identify the mistake and use the correct answer to the problem!!!-example-1
User Jozef
by
3.4k points

2 Answers

4 votes

Answer:

11/8 is the correct answer

Explanation:

15/24 + 3/4

Reduce the fraction 15/24 ​ to lowest terms by extracting and canceling out 3.

=5/8 +3/4

Least common multiple of 8 and 4 is 8. Convert 5/8 and 3/4 to fractions with denominator 8.

= 5/8 + 6/8

since 5/8 and 6/8 have the same denominator, add them by adding their numerators.

= 5 + 6/8

Add 5 and 6 to get 11.

=11/8

here is why 9/14 is wrong

PLEASE HELP!!!! Identify the mistake and use the correct answer to the problem!!!-example-1
PLEASE HELP!!!! Identify the mistake and use the correct answer to the problem!!!-example-2
User Zeisi
by
4.0k points
3 votes

Answer:

1
(3)/(8)

Explanation:

the denominators must be the same so, since 4 goes evenly into 24 we can create an equivalent fraction from 3/4 to 18/24 (multiply numerator and denominator by 6)

now you can add:


(15)/(24) +
(18)/(24) =
((15+18))/(24) =
(33)/(24)

since the numerator is larger than the denominator this is called an improper fraction and can be changed into a mixed number by dividing 24 into 33

24 goes into 33 one time with a remainder of 9

so 33/24 = 1
(9)/(24) wherein 9 and 24 can each have a 3 factored out to make it fully simplified

9÷3 = 3

24÷3 = 8

final answer is 1
(3)/(8)

User MusiGenesis
by
3.8k points