Question

4/5-(-2/7)-7/10

Answer 1

4/5-(-2/7)-7/10

= 4/5+2/7-7/10

= 38/35 - 7/10

= 27/70

Answer 2

\(\frac{4}{5}-\left(-\frac{2}{7}\right)-\frac{7}{10}=\frac{4}{5}+\frac{2}{7}-\frac{7}{10}=\frac{38}{35}-\frac{7}{10}=\frac{76}{70}-\frac{49}{70}\)=\(\frac{27}{70}\)

Answer 3

viết phân số kiểu gì vậy ????????????????