Question

3\(\frac{3}{4}x4=\)
4\(\frac{3}{2}:1\)\(\frac{1}{2}\)=
4\(\frac{3}{4 }+2\frac{3}{2}\)=
\(3\frac{8}{6}-4\frac{1}{3}\)=
 

Answer 1

\(3\frac{3}{4}\times4=\frac{3\times4+3}{4}\times4=\frac{15}{4}\times4=\frac{15\times4}{4}=15\)

\(4\frac{3}{2}\div1\frac{1}{2}=\frac{4\times2+3}{2}\div\frac{1\times2+1}{2}=\frac{11}{2}\div\frac{3}{2}=\frac{11}{2}\times\frac{2}{3}=\frac{11}{3}\)

\(4\frac{3}{4}+2\frac{3}{2}=\frac{4\times4+3}{4}+\frac{2\times2+3}{2}=\frac{19}{4}+\frac{7}{2}=\frac{19}{4}+\frac{14}{4}=\frac{33}{4}\)

\(3\frac{8}{6}-4\frac{1}{3}=\frac{3\times8+6}{6}-\frac{4\times3+1}{3}=\frac{30}{6}-\frac{13}{3}=\frac{30}{6}-\frac{26}{6}=\frac{4}{6}=\frac{2}{3}\)

Answer 2

\(3\frac{2}{4}\)x 4 = \(\frac{14}{4}\)x 4 = \(\frac{56}{4}\)

\(4\frac{3}{2}\): \(1\frac{1}{2}\)= \(\frac{11}{2}\): \(\frac{3}{2}\)= \(\frac{11}{2}\)x \(\frac{2}{3}\)= \(\frac{22}{6}\)= \(\frac{11}{3}\)

\(4\frac{3}{4}\)+ \(2\frac{3}{2}\)= \(\frac{11}{4}\)+ \(\frac{7}{2}\)= \(\frac{25}{4}\)= 6,25

\(3\frac{8}{6}\)- \(4\frac{1}{3}\)= \(\frac{13}{3}\)- \(\frac{13}{3}\)= 0

Answer 3

\(3\frac{3}{4}.4=15\)

\(4\frac{3}{2}:1\frac{1}{2}=\frac{11}{3}\)

\(4\frac{3}{4}+2\frac{3}{2}=\frac{33}{4}\)

\(3\frac{8}{6}-4\frac{1}{3}=0\)

Answer 4

\(3\frac{3}{4}=\frac{15}{4}\times4=15\)

\(4\frac{3}{2}:1\frac{1}{2}=\frac{11}{2}:\frac{3}{2}=\frac{11}{3}\)

\(4\frac{3}{4}+2\frac{3}{2}=\frac{19}{4}+\frac{7}{2}=\frac{33}{4}\)

\(3\frac{8}{6}-4\frac{1}{3}=\frac{26}{6}-\frac{13}{3}=\frac{0}{3}\)

Answer 5

\(3\frac{3}{4}x4=\frac{3x4+3}{4}x4=\frac{15}{4}x4=15\)

\(4\frac{3}{2}:1\frac{1}{2}=\frac{4x2+3}{2}:\frac{1x2+1}{2}=\frac{11}{2}:\frac{3}{2}=\frac{11}{2}x\frac{2}{3}=\frac{11}{3}\)

\(4\frac{3}{4}+2\frac{3}{2}=\frac{4x4+3}{4}+\frac{2x2+3}{2}=\frac{19}{4}+\frac{7}{2}=\frac{19}{4}+\frac{14}{4}=\frac{33}{4}\)

\(3\frac{8}{6}-4\frac{1}{3}=3\frac{4}{3}-4\frac{1}{3}=\frac{3x3+4}{3}-\frac{4x3+1}{3}=\frac{13}{3}-\frac{13}{3}=0\)

Answer 6

\(3\frac{3}{4}\times4\)\(=\frac{15}{4}\times4=15\) 

\(4\frac{3}{2}:1\frac{1}{2}\)\(=\frac{11}{2}:\frac{3}{2}=\frac{11}{2}\times\frac{2}{3}=\frac{11}{3}\) 

\(4\frac{3}{4}+2\frac{3}{2}=\frac{19}{4}+\frac{7}{2}\)\(=\frac{19}{4}+\frac{14}{4}=\frac{33}{4}\)

\(3\frac{8}{6}-4\frac{1}{3}=\frac{26}{6}-\frac{13}{3}\)\(=\frac{26}{6}-\frac{26}{6}=0\)

Ủng hộ nha! :) 

Answer 7

\(3\frac{3}{4}x4=\frac{15}{4}\)

\(4\frac{3}{2}:1\frac{1}{2}=\frac{11}{2}:\frac{3}{2}=\frac{11}{2}x\frac{2}{3}=\frac{11}{3}\)

\(4\frac{3}{4}+2\frac{3}{2}=\frac{19}{4}+\frac{7}{2}=\frac{19}{4}+\frac{14}{4}\)\(=\frac{19+14}{4}=\frac{33}{4}\)

\(3\frac{8}{6}-4\frac{1}{3}=\frac{26}{6}-\frac{13}{3}=\frac{13}{3}-\frac{13}{3}=0\)