Answer:
1) [tex] - \frac{4}{5} [/tex]
2) [tex] \frac{9}{8} [/tex]
Step-by-step explanation:
[tex] \frac{2}{5} - \frac{2}{3} = \frac{2 \times 3}{5 \times 3} = \frac{2 \times 5}{3 \times 5} = \frac{6}{15} - \frac{10}{15} [/tex]
[tex] \frac{6 - 10}{15} = - (10 - 6) = - 4[/tex]
[tex] = - \frac{4}{15} [/tex]
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[tex] \frac{3}{4}+\frac{3}{8} [/tex]
[tex] \frac{6+3}{8} [/tex]
[tex] = \frac{9}{8} [/tex]
