Question

[Fenny]

Thuc hien phep tinh

a) \(\frac{-5}{9}+\frac{8}{15}+\frac{-2}{11}+\frac{4}{-9}+\frac{7}{15}\)

b) \(\left(3\frac{2}{5}+2\frac{3}{4}\right)-4\frac{2}{5}\)

Answer 1

[ミ★ngũッhoàngッluffy★彡]

-5/9+8/15+-2/11+-4/9/7/17

(-5/9+-4/9)+(8/15+7/15+-2/11

-1+1+-2/11

-2/11

(17/5+11/4)-22/5

123/20-22/5

123/20-88/20

35/20