địt con mẹ mày

địt con mẹ bọn onlinemath sex

\(\frac{\sqrt{15}-\sqrt{12}}{2-\sqrt3}+\frac{12}{3+\sqrt3}+\frac{9}{\sqrt3}\)

\(=\frac{\left(\sqrt{15}-2\sqrt3\right)\left(2+\sqrt3\right)}{\left(2-\sqrt3\right)\left(2+\sqrt3\right)}+\frac{12\left(3-\sqrt3\right)}{\left(3+\sqrt3\right)\left(3-\sqrt3\right)}+3\sqrt3\)

\(=\left(\sqrt{15}-2\sqrt3\right)\left(2+\sqrt3\right)+\frac{12\cdot\left(3-\sqrt3\right)}{9-3}+3\sqrt3\)

\(=\left(\sqrt{15}-2\sqrt3\right)\left(2+\sqrt3\right)+2\left(3-\sqrt3\right)+3\sqrt3\)

\(=2\sqrt{15}+3\sqrt5-4\sqrt3-6+6-2\sqrt3+3\sqrt3=2\sqrt{15}+3\sqrt5-3\sqrt3\)

\(\dfrac{3}{5}:\left(\dfrac{-1}{15}-\dfrac{1}{6}\right)+\dfrac{3}{5}:\left(\dfrac{-1}{3}-\dfrac{16}{15}\right)\)

\(=\dfrac{3}{5}:\dfrac{-4}{15}+\dfrac{3}{5}:\dfrac{-7}{5}\)

\(=\dfrac{3}{5}.\dfrac{-15}{4}+\dfrac{3}{5}.\dfrac{-5}{7}\)

\(=\dfrac{3}{5}.\left(\dfrac{-15}{4}+\dfrac{-5}{7}\right)\)

\(=\dfrac{3}{5}.\dfrac{85}{28}\)

\(=\dfrac{51}{28}\)

Tick mk tiếp nha !!! (mk ko chắc là đúng đâu, nhớ tính lại nhé )

709/240

3/5+ 3/16+ 13/6

= 709/ 240

3/5+ 3/16+ 13/6= 709/ 240

Rút gọn rồi tính:                                                                                                                                               \(a.\frac{16}{24}-\frac{1}{3}=\frac{2}{3}-\frac{1}{3}=\frac{1}{3}\)

\(b.\frac{4}{5}-\frac{12}{60}=\frac{4}{5}-\frac{1}{5}=\frac{3}{5}\)

Tính rồi rút gọn:

\(a.\frac{17}{6}-\frac{2}{6}=\frac{15}{6}\)

\(b.\frac{16}{15}-\frac{11}{15}=\frac{5}{15}=\frac{1}{3}\)

\(c.\frac{19}{12}-\frac{13}{12}=\frac{6}{12}=\frac{1}{2}\)

1a2/3-1/3=1/3            c4/5-1/5=3/5             tinh roi rut gon 17/6-2/6=15/6=5/2             16/15-11/15=5/15=1/3           19/12-13/12=6/12=1/2

chuc bn hoc tot

lớp 1 à cu

\(\frac{3}{16}\times?=\frac{3}{4}\)

Gọi ? là số cần tìm,ta có : \(?=\frac{3}{4}:\frac{3}{16}\)

\(\Rightarrow?=\frac{3}{4}\cdot\frac{16}{3}\)

\(\Rightarrow?=\frac{48}{12}\)

\(\Rightarrow?=4\)

Vậy ? = 4

\(\frac{3}{16}\times x=\frac{3}{4}\)

\(\Rightarrow x=\frac{3}{4}\div\frac{3}{16}\)

\(x=\frac{3}{4}\times\frac{16}{3}\)

\(\Rightarrow x=\frac{3\times16}{4\times3}\)

\(\Rightarrow x=4\)

\(\frac{3}{16}\times\frac{3}{4}\)

\(\Rightarrow\frac{3\times3}{16\times4}=\frac{9}{64}\)

Đề là gì vậy bạn mình ko hỉu