Question

[Bảo uyên Nguyễn]

a)5/12 + 1/4 = 

b)23/5 - 11/3 = 

c)4/5 + 13 = 

d)8/5 : 1/3 = 

e)3/7 x 2 =

Answer 1

[Chuu]

a)5/12 + 1/4 = \(\dfrac{5}{12}+\dfrac{3}{12}=\dfrac{8}{12}=\dfrac{2}{3}\)

b)23/5 - 11/3 = \(\dfrac{69}{15}-\dfrac{55}{15}=\dfrac{14}{15}\)

c)4/5 + 13 = \(\dfrac{4}{5}+\dfrac{65}{5}=\dfrac{69}{5}\)

d)8/5 : 1/3 = \(\dfrac{8}{5}x3=\dfrac{24}{5}\)

e)3/7 x 2 =\(\dfrac{6}{7}\)

 

Answer 2

[Zizi Minz Zin (『ʈєɑɱ❖๖ۣۜƝƘ☆』) + (...]

\(a,\) \(\dfrac{5}{12}+\dfrac{1}{4}=\dfrac{5}{12}+\dfrac{3}{12}=\dfrac{8}{12}=\dfrac{2}{3}\) 

\(b,\) \(\dfrac{23}{5}-\dfrac{11}{3}=\dfrac{69}{15}-\dfrac{55}{15}=\dfrac{14}{15}\) 

\(c,\) \(\dfrac{4}{5}+\dfrac{1}{3}=\dfrac{12}{15}+\dfrac{5}{15}=\dfrac{17}{15}\) 

\(d,\) \(\dfrac{8}{5}:\dfrac{1}{3}=\dfrac{8}{5}\times\dfrac{3}{1}=\dfrac{24}{5}\)

\(e,\) \(\dfrac{3}{7}\times2=\dfrac{3\times2}{7}=\dfrac{6}{7}\)