A = (-2/3 + 1 1/4 – 1/6) B = 13/15 . 0,25.3 + (8/15 – 1 19/60) : 1 23/24 07/08/2021 Bởi Melanie A = (-2/3 + 1 1/4 – 1/6) B = 13/15 . 0,25.3 + (8/15 – 1 19/60) : 1 23/24
Đáp án: ` A = ( -2/3 + 1 1/4 – 1/6)` ` = -2/3 + 5/4 – 1/6` ` = 7/12 -1/6` ` = 5/12` ` B = 13/15 . 0,25 . 3 + (8/15 – 1 19/60) : 1 23/24` ` = 13/15 . 1/4 . 3 + 8/15 – 79/60 : 47/24` ` = 13/(60).3 – 47/60 : 47/24` ` = 13/20 – 2/5` ` = 1/4` Bình luận
Đáp án: A = $\frac{5}{12}$ B = 0,25 Giải thích các bước giải: A = ($\frac{-2}{3}$ + 1$\frac{1}{4}$ – $\frac{1}{6}$) A = ($\frac{-2}{3}$ + $\frac{5}{4}$ – $\frac{1}{6}$) A = ($\frac{-8}{12}$ + $\frac{15}{12}$ – $\frac{2}{12}$) A = $\frac{5}{12}$ B = $\frac{13}{15}$ . 0,25 . 3 + ( $\frac{8}{15}$ – 1$\frac{19}{60}$ ) : 1$\frac{23}{24}$ B = $\frac{13}{15}$ . 0,75 + ( $\frac{8}{15}$ – $\frac{79}{60}$ ) : $\frac{47}{24}$ B = 0,65 + $\frac{-47}{60}$ : $\frac{47}{24}$ B = 0,65 + ( -0,4 ) B = 0,25 Bình luận
Đáp án:
` A = ( -2/3 + 1 1/4 – 1/6)`
` = -2/3 + 5/4 – 1/6`
` = 7/12 -1/6`
` = 5/12`
` B = 13/15 . 0,25 . 3 + (8/15 – 1 19/60) : 1 23/24`
` = 13/15 . 1/4 . 3 + 8/15 – 79/60 : 47/24`
` = 13/(60).3 – 47/60 : 47/24`
` = 13/20 – 2/5`
` = 1/4`
Đáp án: A = $\frac{5}{12}$
B = 0,25
Giải thích các bước giải:
A = ($\frac{-2}{3}$ + 1$\frac{1}{4}$ – $\frac{1}{6}$)
A = ($\frac{-2}{3}$ + $\frac{5}{4}$ – $\frac{1}{6}$)
A = ($\frac{-8}{12}$ + $\frac{15}{12}$ – $\frac{2}{12}$)
A = $\frac{5}{12}$
B = $\frac{13}{15}$ . 0,25 . 3 + ( $\frac{8}{15}$ – 1$\frac{19}{60}$ ) : 1$\frac{23}{24}$
B = $\frac{13}{15}$ . 0,75 + ( $\frac{8}{15}$ – $\frac{79}{60}$ ) : $\frac{47}{24}$
B = 0,65 + $\frac{-47}{60}$ : $\frac{47}{24}$
B = 0,65 + ( -0,4 )
B = 0,25