[tex]a = \frac{4 \times 15 \times 14}{21 \times 10 \times 22} = \frac{2 \times 3 \times 2}{3 \times 2 \times 11} = \frac{2}{11} [/tex]
[tex]b = \frac{ {2}^{2} \times 3 \times {5}^{3} }{2 \times {3}^{3} \times {5}^{2} } = {2}^{2 - 1} \times {3}^{1 - 3} \times {5}^{3 - 2} = 2 \times \frac{1}{9} \times 5 = \frac{10}{9} [/tex]
[tex]c = \frac{ {3}^{3} \times 5 \times {7}^{2} }{ {3}^{2} \times 7 \times 13 } = {3}^{3 - 2} \times \frac{5}{13} \times {7}^{2 - 1} = 3 \times \frac{5}{13} \times 7 = \frac{105}{13} [/tex]
[tex]d = \frac{ {2}^{2} \times {5}^{4} \times 17 }{ {2}^{5} \times {5}^{3} \times 11 } = {2}^{2 - 5} \times {5}^{4 - 3} \times \frac{17}{11} = {2}^{ - 3} \times 5 \times \frac{17}{11} = \frac{1}{8} \times 5 \times \frac{17}{11} = \frac{85}{88} [/tex]
[tex]e = \frac{ {2}^{3} \times {3}^{2} \times {11}^{2} }{ {2}^{5} \times {3}^{3} \times 5 } = {2}^{3 - 5} \times {3}^{2 - 3} \times \frac{121}{5} = \frac{1}{4} \times \frac{1}{3} \times \frac{121}{5} = \frac{121}{60} [/tex]
