Question

giúp em với ạ

Answer 1

a: =8/12+7/12=15/12=5/4

b: =25/48+22/48=47/48

c: =5/7+1/6=30/42+7/42=37/42

d: =15/24+15/16=30/48+45/48=75/48=25/16

e: =5/16+1/6+5/24=15/48+8/48+10/48=33/48=11/16

Answer 2

8/12+7/12=15/12=5/4

25/48+22/48=47/48

5/7+1/6=30/42+7/42=37/42

15/24+15/16=30/48+45/48=75/48=25/16

5/16+1/6+5/24=15/48+8/48+10/48=33/48=11/16

Answer 3

\(1a.\dfrac{2}{3}+\dfrac{7}{12}=\dfrac{8}{12}+\dfrac{7}{12}=\dfrac{15}{12}=\dfrac{5}{4}\)

\(b.\dfrac{25}{48}+\dfrac{11}{24}=\dfrac{25}{48}+\dfrac{22}{48}=\dfrac{47}{48}\)

\(c.\dfrac{5}{7}+\dfrac{3}{18}=\dfrac{90}{126}+\dfrac{21}{126}=\dfrac{111}{126}=\dfrac{37}{42}\)

\(d.\dfrac{15}{24}+\dfrac{15}{16}=\dfrac{30}{48}+\dfrac{45}{48}=\dfrac{75}{48}=\dfrac{25}{16}\)

\(e.\dfrac{5}{16}+\dfrac{1}{6}+\dfrac{5}{24}=\dfrac{15}{48}+\dfrac{8}{48}+\dfrac{10}{48}=\dfrac{33}{48}=\dfrac{11}{16}\)