Answer :
Answer:
Step-by-step explanation:
Part b:
[tex]\frac{4}{7}+(\frac{-3}{21})\times(\frac{-7}{8})=\frac{4}{7}+(\frac{-3\times-7}{21\times8})=\frac{4}{7}+\frac{21}{21\times8}=\frac{4}{7}+\frac{1}{8}=\frac{(4\times8)+(1\times7)}{7\times8}=\frac{39}{56}[/tex]
Part c:
[tex]\frac{14}{8}\times\frac{2}{32}-\frac{2}{24}=\frac{7}{64}-\frac{2}{24}=\frac{5}{192}[/tex]
Part d:
[tex]\frac{5}{7}\times\frac{30}{15}\div\frac{60}{5}\\=\frac{10}{7}\div\frac{60}{5}\\=\frac{10}{7}\times\frac{5}{60}\\=\frac{5}{42}[/tex]