3/8+1 = 1375

3\8+1=1375

\(\frac{3}{8}+1=1375\)

Hk tốt

\(\dfrac{21}{\dfrac{316}{5}}\)

\(\dfrac{3}{\dfrac{18}{5}}\cdot\dfrac{7}{12}=\dfrac{5}{6}\cdot\dfrac{7}{12}=\dfrac{35}{72}\)

\(\frac{13}{18}-\frac{2}{9}+\frac{1}{2}\)

= \(\frac{13}{18}-\frac{4}{18}+\frac{9}{18}\)

= \(\frac{13-4+9}{18}\)

=  \(\frac{18}{18}=1\)

13/18 - 2/9 + 1/2 = 

13/18 - 4/18 + 9/18 = 

18/18 = 1

\(\frac{7}{8}-\frac{7}{16}-\frac{11}{32}\)

= \(\frac{28}{32}-\frac{14}{32}-\frac{11}{32}\)

= \(\frac{28-14-11}{32}\)

= \(\frac{3}{32}\)

Đề : 7/8 - 7/16 - 11/32 = ?

Chọn MSC là 32 . Ta có phép tính : 28/32 - 14/32 - 11/32 = 3/32 

Tíc nha !

\(\frac{7}{8}-\frac{7}{16}-\frac{11}{32}=\frac{7}{16}-\frac{11}{32}=\frac{3}{32}=0,09375\)

a 15/7"3/4

\(3\frac{1}{2}+4\frac{5}{7}-5\frac{5}{14}=\frac{7}{2}+\frac{33}{7}-\frac{75}{14}=\frac{49}{14}+\frac{66}{14}-\frac{75}{14}=\frac{40}{14}=\frac{20}{7}\)

#Fox

=20/7

Bạn chỉ giúp mk cách làm được ko ạ

20/7 nha

=24/40+25/40=49/40

\(\dfrac{3}{5}+\dfrac{5}{8}=\dfrac{24}{40}+\dfrac{25}{40}=\dfrac{49}{40}\)

49/40 nha