Question

-2/9+8/15+5/3-7/9+7/15

Answer 1

\(-\dfrac{2}{9}+\dfrac{8}{15}+\dfrac{5}{3}-\dfrac{7}{9}+\dfrac{7}{15}\)

\(=-\dfrac{2}{9}-\dfrac{7}{9}+\dfrac{8}{15}+\dfrac{7}{15}+\dfrac{5}{3}\)

\(=-\dfrac{9}{9}+\dfrac{15}{15}+\dfrac{5}{3}\)

\(=-1+1+\dfrac{5}{3}\)

\(=0+\dfrac{5}{3}\)

\(=\dfrac{5}{3}\)

Answer 2

-2/9 + 8/15 + 5/3 - 7/9 + 7/15

= -2/9 - 7/9 + 8/15 + 7/15 + 5/3

= -9/9 + 15/15 + 5/3

= -1 + 1 + 5/3

= 0 + 5/3

=5/3