Question

(2/3 + -4/5 + 7/15 + -11/20

Answer 1

Answer:

-13/60

Step-by-step explanation:

$\frac{2}{3} +\frac{-4}{5} +\frac{7}{15} +\frac{-11}{20}$

lcm of 3,5,15,20=60

so,

$\frac{2}{3}=\frac{40}{60}$

$\frac{-4}{5}=\frac{-48}{60}$

$\frac{7}{15} = \frac{28}{60}$

$\frac{-11}{20}=\frac{-33}{60}$

= $\frac{40+(-48)+28+(-33)}{60}$

=$\frac{-13}{60}$