Evaluate: -3/4 - 1 3/8
A: - 17/8 B: -1
C: 17/8 D: -5/8
I put C but its was incorrect. I'm to sure what the correct answer would then be. can you show me how to solve it and how to achieve the correct answer?
-3/4 = -6/8
-6/8 - 11/8 = -17/8 = -2 1/8
You were actually pretty close, April.
During the solving of this problem, the answer turns into a negative because of the negative 3/4. So, it is actually A, and not C.
-3/4 - 1 3/8
Subtract the fractions by converting them into decimals, and leaving the 1 out.
-0.75 - 0.375 = -1.125
Then, you subtract 1 from -1.125.
-1.125 - 1 = -2.125
I hope this helps you understand your mistake! :)
Ms. Sue is correct as well.
I forgot to mention:
-2.125 = -17/8
To evaluate the expression (-3/4) - (1 3/8), we need to subtract the two fractions.
First, let's convert the mixed number 1 3/8 into an improper fraction. To do that, multiply the whole number (1) by the denominator (8) and add the numerator (3). This gives us:
1 * 8 + 3 = 8 + 3 = 11
Now, the improper fraction equivalent to 1 3/8 is 11/8.
Now, let's rewrite the expression as (-3/4) - (11/8).
To subtract fractions, we need to have a common denominator. The least common multiple of 4 and 8 is 8. We can convert -3/4 to an equivalent fraction with a denominator of 8 by multiplying the numerator and denominator by 2:
-3/4 = (2 * -3) / (2 * 4) = -6/8
Now, the expression becomes:
(-6/8) - (11/8)
We can subtract the numerators and keep the denominator the same:
-6/8 - 11/8 = (-6 - 11) / 8 = -17/8
Therefore, the correct answer is A: -17/8.