\(4\frac{25}{16}\).25.\(\left(\frac{9}{16}-\frac{117}{64}\right)\): \(\frac{27}{8}\)
\(\frac{5}{16}\): 0.125+1.456: \(\frac{7}{25}\)+\(4\frac{1}{2}\)+0.8
\(4\frac{25}{16}+25.\left(\frac{9}{16}-\frac{117}{64}\right):\frac{27}{8}\)
KQ là \(-\frac{61}{16}\)
mk ko bít bạn có cần lời giải ko mk chỉ vít kq hoi
có j nếu cần lời giải ns mk ha
\(4\frac{25}{16_{ }}+25.\left(\frac{9}{16}-\frac{117}{64}\right):\frac{27}{8}\)
=\(\frac{25}{4}+25.\left(\frac{36}{64}-\frac{117}{64}\right):\frac{27}{8}\)
=\(\frac{25}{4}+25.\left(\frac{-81}{64}\right):\frac{28}{7}\)
=\(\frac{25}{4}+\left(\frac{-2025}{64}\right).\frac{7}{28}\)
=\(\frac{25}{4}+\left(\frac{-2025}{256}\right)\)
=\(\frac{1600}{256}-\frac{2025}{256}\)
=\(\frac{-425}{256}\)
bn xem có đúng k nhé!
tÍNH:
a, \(4\frac{25}{16}+25.\left(\frac{9}{16}-\frac{117}{64}\right):\frac{27}{8}\)
b, -15,5x20,8+3,5x9,2-15,5x9,2+3,5x20,8
c, \(\frac{5}{16}:0,125+1,456:\frac{7}{25}+4\frac{1}{2}.0,8\)
Tính:
A = $5\frac{3}{7}+\left(-5,35\right)+\frac{1}{3}+\left(-2,41\right)+\frac{3}{21}+\left(-1,24\right)$537 +(−5,35)+13 +(−2,41)+321 +(−1,24)
B = $4\frac{25}{16}+25.\left(\frac{9}{16}-\frac{117}{64}\right):\frac{27}{8}$42516 +25.(916 −11764 ):278
Trình bày cách giải và đáp án giúp mình nha! ^^
\(\frac{89}{15}+25\left(\frac{9}{16}-\frac{117}{64}\right):\frac{27}{8}\)
=\(\frac{89}{15}+25(-\frac{81}{64}):\frac{27}{8}\)
=\(\frac{89}{15}+(-\frac{2025}{64}):\frac{27}{8} \)
=\(\frac{89}{15}+(-\frac{75}{8})\)
=\(-\frac{89}{24}\)
\(\frac{89}{15}\)+ 25 \((\) \(\frac{36}{64}\)\(-\)\(\frac{117}{64}\)\()\). \(\frac{8}{27}\)
= \(\frac{89}{15}\)+ 25 \((\)\(\frac{-81}{64}\)\()\)\(\frac{8}{27}\)
= \(\frac{89}{15}\)+ 25 . \((\)\(\frac{-3}{8}\)\()\)
= \(\frac{89}{15}\)+ \(\frac{-75}{8}\)
= \(\frac{-413}{120}\)
Nếu đúng cho mình xin 1 k nhé
\(\frac{\frac{8}{5}:\left(\frac{8}{5}.\frac{5}{4}\right)}{\frac{16}{25}-\frac{1}{25}}+\frac{1:\frac{4}{7}}{\left(\frac{50}{9}-\frac{9}{4}\right).\frac{36}{17}}+0,6.0,5:\frac{2}{5}\)
8/5:(8/5.5/4) / 16/25-1/25 + 1:4/7 / (50/9-9/4).36/17) + 0,6.0,5:2/5
= 8/5:8/5:5/4 / 3/5 + 7/4 / 50/9.36/17-9/4.36/17 + 0,3.5/2
= 4/5:3/5 + 7/4 / 200/17-81/17 + 3/10.5/2
= 4/5.5/3 + 7/4 / 119/17 + 3/4
= 4/3 + 7/4 : 7 + 3/4
= 4/3 + 4 + 3/4
= 16/12 + 48/12 + 9/12
= 73/12
☆★☆★☆
\(4\frac{25}{16}+25\left(\frac{9}{16}:\frac{125}{164}\right):\left(\frac{_{-27}}{8}\right)\)
\(=\frac{89}{16}+25.\frac{369}{500}:\left(\frac{-27}{8}\right)\)
\(=\frac{89}{16}+\frac{369}{20}:\left(\frac{-27}{8}\right)\)
\(=\frac{89}{16}+\frac{-82}{15}\)
\(=\frac{23}{240}\)
Tính:
A = \(5\frac{3}{7}+\left(-5,35\right)+\frac{1}{3}+\left(-2,41\right)+\frac{3}{21}+\left(-1,24\right)\)
B = \(4\frac{25}{16}+25.\left(\frac{9}{16}-\frac{117}{64}\right):\frac{27}{8}\)
Mấy dấu gạch không phải là trị tuyệt đối đâu mà khi mình ghi thì nó có sẵn
Trình bày cách giải và đáp án giúp mình nha! ^^
Tính
a) \(2\sqrt{\frac{25}{16}}-3\sqrt{\frac{49}{36}}+4\sqrt{\frac{81}{64}}\)
b) \(\left(3\sqrt{2}\right)^2-\left(4\sqrt{\frac{1}{2}}\right)^2+\frac{1}{16}.\left(\sqrt{\frac{3}{4}}\right)^2\)
c) \(\frac{2}{3}\sqrt{\frac{81}{16}}-\frac{3}{4}\sqrt{\frac{64}{9}}+\frac{7}{5}.\sqrt{\frac{25}{196}}\)
a) = \(\frac{7}{2}\)
b) = \(\frac{643}{64}\)
c) = 0
Tính giá trị biểu thức:
\(A=\frac{\frac{16}{10}:\left(1\frac{3}{5}\times \frac{5}{4}\right)}{\frac{64}{100}-\frac{1}{25}}+\frac{\left(\frac{108}{100}-\frac{2}{25}\right):\frac{4}{7}}{\left(5\frac{5}{9}-2\frac{1}{4}\right)\times 2\frac{2}{17}}+\frac{3}{5}\times \frac{1}{2}:\frac{2}{5}\)