1/2.3 – 8/3.5 + 4/5.9 – 22/9.13 + 31/13.18 03/09/2021 Bởi Mackenzie 1/2.3 – 8/3.5 + 4/5.9 – 22/9.13 + 31/13.18
Đáp án: Giải thích các bước giải: `1/2.3 – 8/3.5 + 4/5.9 – 22/9.13 + 31/13.18` ` = 1/6 – 8/15 + 4/45 – 22/117 + 31/234 ` ` = -11/30 + 4/45 – 22/117 + 31/234 ` ` = -5/18 – 22/117 + 31/234 ` ` = -109/234 + 31/234 ` ` = -1/3 ` Bình luận
$\frac{1}{2.3}$ – $\frac{8}{3.5}$ + $\frac{4}{5.9}$ – $\frac{22}{9.13}$ +$\frac{31}{13.18}$ = $\frac{1}{6}$ – $\frac{8}{15}$ + $\frac{4}{45}$ – $\frac{22}{117}$ +$\frac{31}{234}$ = – $\frac{11}{30}$ + $\frac{4}{45}$ – $\frac{22}{117}$ +$\frac{31}{234}$ = – $\frac{5}{18}$ – $\frac{22}{117}$ +$\frac{31}{234}$ = – $\frac{109}{234}$ +$\frac{31}{234}$ = – $\frac{1}{3}$ Bình luận
Đáp án:
Giải thích các bước giải:
`1/2.3 – 8/3.5 + 4/5.9 – 22/9.13 + 31/13.18`
` = 1/6 – 8/15 + 4/45 – 22/117 + 31/234 `
` = -11/30 + 4/45 – 22/117 + 31/234 `
` = -5/18 – 22/117 + 31/234 `
` = -109/234 + 31/234 `
` = -1/3 `
$\frac{1}{2.3}$ – $\frac{8}{3.5}$ + $\frac{4}{5.9}$ – $\frac{22}{9.13}$ +$\frac{31}{13.18}$
= $\frac{1}{6}$ – $\frac{8}{15}$ + $\frac{4}{45}$ – $\frac{22}{117}$ +$\frac{31}{234}$
= – $\frac{11}{30}$ + $\frac{4}{45}$ – $\frac{22}{117}$ +$\frac{31}{234}$
= – $\frac{5}{18}$ – $\frac{22}{117}$ +$\frac{31}{234}$
= – $\frac{109}{234}$ +$\frac{31}{234}$
= – $\frac{1}{3}$