Question

Evaluate: $-2\times \frac{3}{12}\times \frac{5}{10}\times \frac{7}{15}\times \frac{-60}{7}$

Answer 1

$-2\times \frac{3}{12}\times \frac{5}{10}\times \frac{7}{15}\times \frac{-60}{7}$

$=\frac{-2\times 3\times 5\times 7\times -60}{12\times 10\times 15\times 7}$

$=\frac{1\times 15\times 7\times 60}{6\times 10\times 15\times 7}$

$=1$