6. A note book has 145 pages and 15 of
them have been used. What fraction of the
note remains?
A. 11/29
B. 5/29
C. 18/29
D. 6/29
To find the fraction of the notebook that remains, we need to subtract the number of used pages from the total number of pages and then divide that by the total number of pages.
Total number of pages - Number of used pages = Fraction of the notebook that remains
145 - 15 = 130
Fraction of the notebook that remains / Total number of pages = Fraction of the notebook that remains
130/145 = 18/29
Answer: C. 18/29
To determine the fraction of the notebook that remains, we need to subtract the number of used pages from the total number of pages and express it as a fraction.
Total number of pages = 145
Number of used pages = 15
Number of remaining pages = Total number of pages - Number of used pages
Number of remaining pages = 145 - 15 = 130
So, the fraction of the notebook that remains is 130/145.
To simplify this fraction, we can divide both the numerator and the denominator by their highest common factor, which is 5.
130 ÷ 5 = 26
145 ÷ 5 = 29
So, the simplified fraction is 26/29.
Therefore, the correct answer is:
A. 11/29