Question

Tính: 2 & 1/3 + 1 & 1/2                  1 & 1/4 - 6/5              426*325            1104 : 23

 

Answer 1

\(2\dfrac{1}{3}+1\dfrac{1}{2}=\dfrac{7}{3}+\dfrac{3}{2}=\dfrac{21}{6}+\dfrac{9}{6}=\dfrac{30}{6}=5\) 

\(1\dfrac{1}{4}-\dfrac{6}{5}=\dfrac{5}{4}-\dfrac{6}{5}=\dfrac{25}{20}-\dfrac{24}{20}=\dfrac{1}{20}\) 

\(426\times325=138450\) 
\(1104 : 23=48\)

Answer 2

a)

\(2\dfrac{1}{3}+1\dfrac{1}{2}=\dfrac{7}{3}+\dfrac{3}{2}=\dfrac{23}{6}\)

b)

\(1\dfrac{1}{4}-\dfrac{6}{5}=\dfrac{5}{4}-\dfrac{6}{5}=\dfrac{1}{20}\)

c)

\(426\cdot325=138450\)

d)

\(1104:23=48\)