Question

120 . 24 - 150 : 15 + 4

12,5 + 34,5 : 5 + 10,5.2

1/2 x 3/4 - 1/6

3 1/2 + 1 3/4 - 5/6

 

Answer 1

\(120\times24-150:15+4=2880-10+4=2870+4=2874\)

\(12,5+34,5:5+10,5\times2=12,5+6,9+21=40,4\)

\(\dfrac{1}{2}\times\dfrac{3}{4}-\dfrac{1}{6}=\dfrac{3}{8}-\dfrac{1}{6}=\dfrac{9}{24}-\dfrac{4}{24}=\dfrac{5}{24}\)

\(3\dfrac{1}{2}+1\dfrac{3}{4}-\dfrac{5}{6}=\dfrac{7}{2}+\dfrac{7}{4}-\dfrac{5}{6}=\dfrac{42}{12}+\dfrac{21}{12}-\dfrac{10}{12}=\dfrac{42+21-10}{12}=\dfrac{53}{12}\)

Answer 2

120.24-150:15+4
=2880-10+4
=2874
12,5+34,5:5+10,5.2
=12,5+6,9+21
=40,4
\(\dfrac{1}{2}\)x\(\dfrac{3}{4}\)-\(\dfrac{1}{6}\)
=\(\dfrac{3}{8}\)-\(\dfrac{1}{6}\)
=\(\dfrac{18-8}{48}\)=\(\dfrac{5}{24}\)
\(3\dfrac{1}{2}+1\dfrac{3}{4}-\dfrac{5}{6} \)=\(\dfrac{7}{2}+\dfrac{7}{4}-\dfrac{5}{6}\)=\(\dfrac{42}{12}+\dfrac{21}{12}-\dfrac{10}{12}=\dfrac{53}{12}\)