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Quiz
Arithmetic
5 problems similar to:
( - \frac { 5 } { 17 } ) + \frac { 7 } { 25 } + \frac { 6 } { 425 }
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-\frac{125}{425}+\frac{119}{425}+\frac{6}{425}
Least common multiple of 17 and 25 is 425. Convert -\frac{5}{17} and \frac{7}{25} to fractions with denominator 425.
\frac{-125+119}{425}+\frac{6}{425}
Since -\frac{125}{425} and \frac{119}{425} have the same denominator, add them by adding their numerators.
-\frac{6}{425}+\frac{6}{425}
Add -125 and 119 to get -6.
0
Add -\frac{6}{425} and \frac{6}{425} to get 0.
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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Limits
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