3/7.(13/8 – 7/9 ) – 5/8. ( 3/7 – 8/15 ) Giúp mình vs mình vote 5 sao và tim chọn câu trả lời hay nhất 03/12/2021 Bởi Eloise 3/7.(13/8 – 7/9 ) – 5/8. ( 3/7 – 8/15 ) Giúp mình vs mình vote 5 sao và tim chọn câu trả lời hay nhất
=>$\frac{3}{7}$x( $\frac{13}{8}$- $\frac{5}{8}$)-$\frac{3}{7}$x$\frac{7}{9}$- $\frac{5}{8}$x $\frac{8}{15}$ => $\frac{3}{7}$x1- $\frac{1}{3}$- $\frac{1}{3}$ =$\frac{3}{7}$ Bình luận
3/ 7.(13/8 – 7/9 ) – 5/8. ( 3/7 – 8/15 ) = 3/7.13/8 – 3/7.7/9 – 5/8.3/7 – 5/8.8/15 = 3/7.(13/8 – 5/8) – 3/7.7/9 – 5/8.8/15 = 3/7.1 – 1/3 – 1/3 = 3/7 Bình luận
=>$\frac{3}{7}$x( $\frac{13}{8}$- $\frac{5}{8}$)-$\frac{3}{7}$x$\frac{7}{9}$- $\frac{5}{8}$x $\frac{8}{15}$
=> $\frac{3}{7}$x1- $\frac{1}{3}$- $\frac{1}{3}$ =$\frac{3}{7}$
3/ 7.(13/8 – 7/9 ) – 5/8. ( 3/7 – 8/15 )
= 3/7.13/8 – 3/7.7/9 – 5/8.3/7 – 5/8.8/15
= 3/7.(13/8 – 5/8) – 3/7.7/9 – 5/8.8/15
= 3/7.1 – 1/3 – 1/3
= 3/7