Evaluate
\frac{7}{8}=0.875
Factor
\frac{7}{2 ^ {3}} = 0.875
Quiz
Arithmetic
5 problems similar to:
2 \frac { 5 } { 8 } - 4 \frac { 9 } { 6 } + 3 \frac { 3 } { 4 }
Share
Copied to clipboard
\frac{16+5}{8}-\frac{4\times 6+9}{6}+\frac{3\times 4+3}{4}
Multiply 2 and 8 to get 16.
\frac{21}{8}-\frac{4\times 6+9}{6}+\frac{3\times 4+3}{4}
Add 16 and 5 to get 21.
\frac{21}{8}-\frac{24+9}{6}+\frac{3\times 4+3}{4}
Multiply 4 and 6 to get 24.
\frac{21}{8}-\frac{33}{6}+\frac{3\times 4+3}{4}
Add 24 and 9 to get 33.
\frac{21}{8}-\frac{11}{2}+\frac{3\times 4+3}{4}
Reduce the fraction \frac{33}{6} to lowest terms by extracting and canceling out 3.
\frac{21}{8}-\frac{44}{8}+\frac{3\times 4+3}{4}
Least common multiple of 8 and 2 is 8. Convert \frac{21}{8} and \frac{11}{2} to fractions with denominator 8.
\frac{21-44}{8}+\frac{3\times 4+3}{4}
Since \frac{21}{8} and \frac{44}{8} have the same denominator, subtract them by subtracting their numerators.
-\frac{23}{8}+\frac{3\times 4+3}{4}
Subtract 44 from 21 to get -23.
-\frac{23}{8}+\frac{12+3}{4}
Multiply 3 and 4 to get 12.
-\frac{23}{8}+\frac{15}{4}
Add 12 and 3 to get 15.
-\frac{23}{8}+\frac{30}{8}
Least common multiple of 8 and 4 is 8. Convert -\frac{23}{8} and \frac{15}{4} to fractions with denominator 8.
\frac{-23+30}{8}
Since -\frac{23}{8} and \frac{30}{8} have the same denominator, add them by adding their numerators.
\frac{7}{8}
Add -23 and 30 to get 7.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}