Question

7/4 - 3/8=????

3 - 5/6=????

mọi người giúp em nha 

em cảm ơn mọi ngươi

Answer 1

\(\dfrac{7}{4}-\dfrac{3}{8}=\dfrac{14}{8}-\dfrac{3}{8}=\dfrac{11}{8}\)

\(3-\dfrac{5}{6}=\dfrac{3}{1}-\dfrac{5}{6}=\dfrac{18}{6}=\dfrac{5}{16}=\dfrac{13}{6}\)

Answer 2

\(1\dfrac{3}{8}\)

Answer 3

\(\dfrac{7}{4}-\dfrac{3}{8}=\dfrac{14}{8}-\dfrac{3}{8}=\dfrac{11}{8}\)

\(3-\dfrac{5}{6}=\dfrac{18.}{6}-\dfrac{5}{6}=\dfrac{13}{6}\)

Answer 4

\(\dfrac{7}{4}-\dfrac{3}{8}=\dfrac{56}{32}-\dfrac{12}{32}=\dfrac{56-12}{32}=\dfrac{44}{32}=\dfrac{11}{8}\)

Answer 5

11/8

13/6

Answer 6

11/8

13/6

Answer 7

\(\dfrac{7}{4}-\dfrac{3}{8}=\dfrac{14}{8}-\dfrac{3}{8}=\dfrac{11}{8}\)

\(3-\dfrac{5}{6}=\dfrac{3}{1}-\dfrac{5}{6}=\dfrac{18}{6}-\dfrac{5}{6}=\dfrac{13}{6}\)

Answer 8

11/8; 13/6

Answer 9

11/8

13/6

Answer 10

\(3-\dfrac{5}{6}=\dfrac{18}{6}-\dfrac{5}{6}=\dfrac{18-5}{6}=\dfrac{13}{6}\)

Answer 11

\(\dfrac{7}{4}-\dfrac{3}{8}=\dfrac{14}{8}-\dfrac{3}{8}=\dfrac{11}{8}\)

\(3-\dfrac{5}{6}=\dfrac{3}{1}-\dfrac{5}{6}=\dfrac{18}{6}-\dfrac{5}{6}=\dfrac{13}{6}\)

Answer 12

11/8

13/6

Answer 13

3−56=31−56=186=516=136

Answer 14

7/4- 3/8= 14/8- 3/8= 11/8

3- 5/6= 3/1- 5/6= 18/6- 5/6= 13/6