a) 1/3+3/8-7/12=? b)4/3 nhân X – 1/6= âm 2 26/08/2021 Bởi Everleigh a) 1/3+3/8-7/12=? b)4/3 nhân X – 1/6= âm 2
Đáp án: $\dfrac{1}{8}$ – $\dfrac{11}{8}$ Giải thích các bước giải: $\dfrac{1}{3}$ + $\dfrac{3}{8}$ – $\dfrac{7}{12}$ = $\dfrac{17}{24}$ – $\dfrac{7}{12}$ = = $\dfrac{1}{8}$ $\dfrac{4}{3}$ . x – $\dfrac{1}{6}$ = – 2 $\dfrac{4}{3}$ . x = $\dfrac{1}{6}$ + – 2 $\dfrac{4}{3}$ . x = – $\dfrac{11}{6}$ x = – $\dfrac{11}{6}$ : $\dfrac{4}{3}$ x = – $\dfrac{11}{8}$ Bình luận
Đáp án: `a, 1/3 + 3/8 -7/12 ` `= (17)/24 – 7/12` `= 1/8` `b, 4/3` x `x – 1/6 = -2` `4/3` x `x = (-11)/6` ` x = (-11)/6 : 4/3` `x = -11/8` Bình luận
Đáp án:
$\dfrac{1}{8}$
– $\dfrac{11}{8}$
Giải thích các bước giải:
$\dfrac{1}{3}$ + $\dfrac{3}{8}$ – $\dfrac{7}{12}$ =
$\dfrac{17}{24}$ – $\dfrac{7}{12}$ =
= $\dfrac{1}{8}$
$\dfrac{4}{3}$ . x – $\dfrac{1}{6}$ = – 2
$\dfrac{4}{3}$ . x = $\dfrac{1}{6}$ + – 2
$\dfrac{4}{3}$ . x = – $\dfrac{11}{6}$
x = – $\dfrac{11}{6}$ : $\dfrac{4}{3}$
x = – $\dfrac{11}{8}$
Đáp án:
`a, 1/3 + 3/8 -7/12 `
`= (17)/24 – 7/12`
`= 1/8`
`b, 4/3` x `x – 1/6 = -2`
`4/3` x `x = (-11)/6`
` x = (-11)/6 : 4/3`
`x = -11/8`