\(\frac{1}{3}+\frac{1}{4}+\frac{1}{5}+\frac{8}{10}+\frac{26}{39}+\frac{75}{100}\)
\(=\frac{1}{3}+\frac{1}{4}+\frac{1}{5}+\frac{4}{5}+\frac{2}{3}+\frac{3}{4}\)
\(=\left(\frac{1}{3}+\frac{2}{3}\right)+\left(\frac{1}{4}+\frac{3}{4}\right)+\left(\frac{1}{5}+\frac{4}{5}\right)\)
\(=1+1+1\)
\(=3\)
1/3 + 1/4 + 1/5 + 8/10 + 26/39 + 75/100
= 7/12 + 1/5 + 8/10 + 26/39 +75/100
= 47/60 + 8/10 + 26/39 + 75/100
= 19/12 + 26/39 + 75/100
= 52/ 117 + 75/100
= 559/400