Evaluate
\frac{21}{40}=0.525
Factor
\frac{3 \cdot 7}{2 ^ {3} \cdot 5} = 0.525
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-\frac{15}{40}+\frac{36}{40}
Least common multiple of 8 and 10 is 40. Convert -\frac{3}{8} and \frac{9}{10} to fractions with denominator 40.
\frac{-15+36}{40}
Since -\frac{15}{40} and \frac{36}{40} have the same denominator, add them by adding their numerators.
\frac{21}{40}
Add -15 and 36 to get 21.
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Limits
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