Question

Using properties, find 4/5 × -3/7 - 1/21 - 3/7 × 4/5​

Answer 1

Step-by-step explanation:

$Find : \\ \frac{4}{5} \times \frac{ - 3}{7} - \frac{1}{21} - \frac{3}{7} \times \frac{4}{5} \\ = \frac{ - 12}{35} - \frac{1}{21} - \frac{ 12}{35} \\ = \frac{ - 24}{35} - \frac{1}{21} \\ = \frac{ - 504 - 35}{735} \\ = \frac{ - 539}{735} \\ = \frac{ - 77}{105} \\ = \frac{ - 11}{15}$