Subtract: 2 5/8 -7/8, reduced to lowest terms =
1 3/4
1 6/8
1 1/4
1 5/8
Correct Answer : A
First convert 2 5/8 into an improper fraction as follows
\(2\frac{5}{8}=\frac{\left(2\ast8\right)+5}{8}=\frac{16+5}{8}=\frac{21}{8}\)
Now carry out subtraction
\(\frac{21}{8}-\frac{7}{8}=\frac{14}{8}=\frac{7}{4}=1\frac{3}{4}\)
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Related Questions
Correct Answer is A
Explanation
The number of packets of a balloon the mother should purchase is evaluated as follows
\(16\ children\ast\frac{15\ balloons}{1\ child}\ast\frac{1\ packet}{50\ balloons}=\frac{24}{5}=4.8\ packets\)
The mother will have to purchase 5 packets of balloons.
Correct Answer is B
Explanation
A ration of the form a:b=c:d is converted to a proportion as\(\frac{a}{b}=\frac{c}{d}\)where b and d are not equal to zero. Now applying the same concept to3:10=12:X yields,
\(\frac{3}{10}=\frac{12}{X}\)
Find the value of X by cross-product
\(3X=12\ast10\)
Divide both sides by 3
\(\frac{3X}{3}=\frac{120}{3}\)
\(X=40\)
Thus, the value of X is 40.
Correct Answer is A
Explanation
0.045 is less than 0.054
Correct Answer is C
Explanation
0.6 divided by 0.12 is determined using a calculator as follows
\(\frac{0.6}{0.12}=5\)
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