Question

[nguyen viet huy]

           \(HELP\) \(ME\)\(!\)

           1.

• \(\frac{3}{4}x\frac{8}{5}:1\frac{1}{6}=\)
• \(2\frac{1}{3}x1\frac{1}{4}-\frac{7}{5}=\)
• \(4\frac{2}{3}+1\frac{1}{4}+2\frac{1}{3}+2\frac{3}{7}=\)​

           2. ​

• \(x.\frac{1}{2}=\frac{3}{4}+\frac{1}{5}\)
• ​\(x-\frac{1}{5}=\frac{2}{3}.\frac{9}{4}\)
• \(x.\frac{1}{5}+\frac{2}{3}=\frac{5}{4}\)
• \(\frac{13}{5}:x-\frac{1}{2}=\frac{4}{5}.\frac{15}{16}\)
• \(x:\frac{4}{9}+\frac{1}{3}=\frac{2}{5}.1\frac{13}{2}\)
  • Chú ý: Dấu chấm là dấu nhân 
    giúp mị với 

Answer 1

[Nguyễn Thị Thương Hoài]

 \(\dfrac{3}{4}\times\dfrac{8}{5}:1\dfrac{1}{6}\) 

=\(\dfrac{6}{5}:\) \(\dfrac{7}{6}\) 

=\(\dfrac{6}{5}\times\dfrac{6}{7}=\dfrac{36}{35}\)

2\(\dfrac{1}{3}\) x 1\(\dfrac{1}{4}\) -\(\dfrac{7}{5}\)

\(\dfrac{7}{3}\times\dfrac{5}{4}-\) \(\dfrac{7}{5}\) 

\(\dfrac{35}{12}-\dfrac{7}{5}\)

\(\dfrac{175}{60}-\dfrac{84}{60}=\dfrac{91}{60}\)

Answer 2

[Nguyễn Thị Thương Hoài]

4\(\dfrac{2}{3}+1\dfrac{1}{4} +2\dfrac{1}{3}+2\dfrac{3}{7}\)

(4 +2) + \(\left(\dfrac{2}{3}+\dfrac{1}{3}\right)\) +1\(\dfrac{1}{4}\) + \(2\dfrac{3}{7}\) 

6 + 1 + \(\dfrac{5}{4}\) + \(\dfrac{17}{7}\)

7 + \(\dfrac{103}{28}\)

\(\dfrac{299}{28}\)