Question

Simplify using properties 5/22 + (-8/21) + (-6/11) + 3/7​

Answer 1

Answer:

$\frac{5}{22} + \frac{ - 8}{21} + \frac{ - 6}{11} + \frac{3}{7} \\ first \: take \: oul \:( lcm) \: and \: make \: the \: denominator \: common \\ (lcm) = 462 \\ \frac{5}{22} \times \frac{21}{21} = \frac{105}{462} \\ \frac{ - 8}{21} \times \frac{22}{22} = \frac{ - 176}{462 } \\ \frac{ - 6}{11} \times \frac{42}{42} = \frac{ - 252}{462} \\ \frac{3}{7} \times \frac{66}{66} = \frac{198}{462} \\ \frac{105 + - 176 + - 252 + 198}{462} \\ = \frac{ - 125}{462}$