Question

Add the product of -2/5 and 1/3 to the product of -3/16 and 4/-5.​

Answer 1

$\frac{ - 2}{5} \times \frac{1}{3} + \frac{ - 3}{16} \times \frac{4}{ - 5} \\ \\ = \frac{ - 2}{15} + \frac{ 3}{20} \\ \\ = \frac{ - 8 + 9}{60} \\ \\ = \boxed {\frac{1}{60} }$

According to the BODMAS [Brackets Of Division Multiplication Addition Subtraction] first we will multiply both the given numbers then we will add by taking LCM of denominators.