Evaluate
\frac{93}{140}\approx 0.664285714
Factor
\frac{3 \cdot 31}{2 ^ {2} \cdot 5 \cdot 7} = 0.6642857142857143
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\frac{100}{140}-\frac{7}{140}
Least common multiple of 7 and 20 is 140. Convert \frac{5}{7} and \frac{1}{20} to fractions with denominator 140.
\frac{100-7}{140}
Since \frac{100}{140} and \frac{7}{140} have the same denominator, subtract them by subtracting their numerators.
\frac{93}{140}
Subtract 7 from 100 to get 93.
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Limits
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