Question

simplify the following question.​

Answer 1

Answer:

$\cfrac{-9}{10} + \cfrac{22}{15}+\cfrac{13}{-20}$

LCM of 10, 15 and 20 is 60

So,

$\Rightarrow \cfrac{-9\times 6 + 22 \times 4 - 13 \times 3}{60}$

$\Rightarrow \cfrac{-54+88-39}{60}$

$\Rightarrow -\cfrac{5}{60}$

$\Rightarrow -\cfrac{1}{12}$

Step-by-step explanation: