$$(4 \frac{ 1 }{ 2 } \times 2 \frac{ 1 }{ 5 } \times 2 \frac{ 2 }{ 3 } )-( \frac{ 3 }{ 5 } \times 2 \frac{ 2 }{ 2 } \times 3 \frac{ 3 }{ 4 } )$$
$\frac{393}{20}=19.65$
$$\frac{8+1}{2}\times \frac{2\times 5+1}{5}\times \frac{2\times 3+2}{3}-\frac{3}{5}\times \frac{2\times 2+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{9}{2}\times \frac{2\times 5+1}{5}\times \frac{2\times 3+2}{3}-\frac{3}{5}\times \frac{2\times 2+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{9}{2}\times \frac{10+1}{5}\times \frac{2\times 3+2}{3}-\frac{3}{5}\times \frac{2\times 2+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{9}{2}\times \frac{11}{5}\times \frac{2\times 3+2}{3}-\frac{3}{5}\times \frac{2\times 2+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{9\times 11}{2\times 5}\times \frac{2\times 3+2}{3}-\frac{3}{5}\times \frac{2\times 2+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{99}{10}\times \frac{2\times 3+2}{3}-\frac{3}{5}\times \frac{2\times 2+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{99}{10}\times \frac{6+2}{3}-\frac{3}{5}\times \frac{2\times 2+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{99}{10}\times \frac{8}{3}-\frac{3}{5}\times \frac{2\times 2+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{99\times 8}{10\times 3}-\frac{3}{5}\times \frac{2\times 2+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{792}{30}-\frac{3}{5}\times \frac{2\times 2+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{132}{5}-\frac{3}{5}\times \frac{2\times 2+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{132}{5}-\frac{3}{5}\times \frac{4+2}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{132}{5}-\frac{3}{5}\times \frac{6}{2}\times \frac{3\times 4+3}{4}$$
$$\frac{132}{5}-\frac{3}{5}\times 3\times \frac{3\times 4+3}{4}$$
$$\frac{132}{5}-\frac{3\times 3}{5}\times \frac{3\times 4+3}{4}$$
$$\frac{132}{5}-\frac{9}{5}\times \frac{3\times 4+3}{4}$$
$$\frac{132}{5}-\frac{9}{5}\times \frac{12+3}{4}$$
$$\frac{132}{5}-\frac{9}{5}\times \frac{15}{4}$$
$$\frac{132}{5}-\frac{9\times 15}{5\times 4}$$
$$\frac{132}{5}-\frac{135}{20}$$
$$\frac{132}{5}-\frac{27}{4}$$
$$\frac{528}{20}-\frac{135}{20}$$
$$\frac{528-135}{20}$$
$$\frac{393}{20}$$
Show Solution
Hide Solution
$\frac{3 \cdot 131}{2 ^ {2} \cdot 5} = 19\frac{13}{20} = 19.65$
