Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
\(1\dfrac{13}{15}.\left(0,5\right)^2.3+\left(\dfrac{8}{15}-1\dfrac{19}{60}\right):1\dfrac{23}{24}\\ =\dfrac{28}{15}.0,25.3+\left(\dfrac{8}{15}-\dfrac{79}{60}\right):\dfrac{47}{24}\\ =\dfrac{7}{15}.3+\dfrac{-47}{60}:\dfrac{47}{24}\\ =\dfrac{7}{5}+\dfrac{-2}{5}\\ =\dfrac{5}{5}=1\)
\(1\frac{13}{15}.\left(0,5\right)^2.3+\left(\frac{8}{15}-1\frac{19}{60}\right):1\frac{23}{24}\)
\(=1\frac{13}{15}.0,25.3+\left(-\frac{47}{60}\right):1\frac{23}{24}\)
\(=1\frac{13}{14}.0,75+\left(-\frac{2}{5}\right)\)
\(=1,4-0,4\)
\(=1\)
\(1\frac{13}{15}.\left(0,5\right)^2.3+\left(\frac{8}{15}-1\frac{19}{60}\right);1\frac{23}{24}=\frac{7}{5}+\left(-\frac{2}{5}\right)=1\)
\(1\frac{13}{15}:\left(0,5\right)^2.3+\left(\frac{8}{15}-1\frac{19}{60}\right):1\frac{23}{24}=\frac{28}{15}.12+\left(\frac{8}{15}-\frac{79}{60}\right).\frac{24}{47}\)
\(=\frac{112}{5}+\left(-\frac{47}{60}.\frac{24}{47}\right)\)
\(=\frac{112}{5}-\frac{2}{5}\)
\(=\frac{100}{5}=20\)
Study well ! >_<
\(1\frac{13}{15}:0,5^2.3+\left(\frac{8}{15}-1\frac{19}{60}\right):1\frac{23}{24}\)
\(=\frac{28}{15}:0,25.3+\left(\frac{8}{15}-\frac{79}{60}\right):\frac{47}{24}\)
\(=\frac{112}{15}.3+\left(\frac{32}{60}-\frac{79}{60}\right):\frac{47}{24}\)
\(=\frac{112}{5}+\frac{-47}{60}:\frac{47}{24}\)
\(=\frac{112}{5}+\frac{-47}{60}.\frac{24}{47}\)
\(=\frac{112}{5}+\frac{-1}{5}.\frac{2}{1}\)
\(=\frac{112}{5}+\frac{-2}{5}\)
\(=\frac{110}{5}\)
\(=\frac{22}{1}=22\)
Giải:
\(1\dfrac{13}{15}.\left(0,5\right)^2.3+\left(\dfrac{8}{15}-1\dfrac{19}{60}\right):1\dfrac{23}{24}\)
\(=\dfrac{28}{15}.\dfrac{1}{4}.3+\left(\dfrac{8}{15}-\dfrac{79}{60}\right):\dfrac{47}{24}\)
\(=\dfrac{7}{5}+\left(-\dfrac{47}{60}\right).\dfrac{24}{47}\)
\(=\dfrac{7}{5}+\left(-\dfrac{2}{5}\right)\)
\(=\dfrac{7}{5}-\dfrac{2}{5}\)
\(=1\)
Vậy ...
=28/15 x 0,25 x 3 + (8/15 - 79/60) : 47/24
= 28/15 x 0,25 x 3 + (-47/60) : 47/24
Bạn tự tính kết quả theo lần lượt nhé