Solve for C
C=\frac{23}{78}\approx 0.294871795
Assign C
C≔\frac{23}{78}
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C=\frac{33}{78}-\frac{10}{78}
Least common multiple of 26 and 39 is 78. Convert \frac{11}{26} and \frac{5}{39} to fractions with denominator 78.
C=\frac{33-10}{78}
Since \frac{33}{78} and \frac{10}{78} have the same denominator, subtract them by subtracting their numerators.
C=\frac{23}{78}
Subtract 10 from 33 to get 23.
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