Question

quy đồng mẫu số rồi tính 1/4 + 1/5 + 1/2 =

nhanh lên mình tích cho 

Answer 1

1/4 + 1/5 + 1/2 = 5/20 + 4/20 + 10/20 = 5+4+10/20 = 19/20

Tk mk nha

Answer 2

19/20

Answer 3

1/4 + 1/5 + 1/2

= 5/20 + 4/20 + 10/20

=     19/20 

Chúc học giỏi !!!!

Answer 4

1/4+1/5+1/2 =5/20+4/20+10/20 =19/20 Giữ lời hứa nha.

Answer 5

\(\frac{1}{4}+\frac{1}{5}+\frac{1}{2}\)

\(=\frac{5}{20}+\frac{4}{20}+\frac{10}{20}=\frac{19}{20}\)

học tốt ~~~

Answer 6

=5/20+4/20+10/20

=5+4+10/20

=19/20

Answer 7

\(\frac{1}{4}+\frac{1}{5}+\frac{1}{2}\)

\(=\frac{5}{20}+\frac{4}{20}+\frac{10}{20}=\frac{19}{20}\)

Answer 8

\(\frac{1}{4}+\frac{1}{5}+\frac{1}{2}\)

\(=\frac{5}{20}+\frac{4}{20}+\frac{10}{20}\)

\(=\frac{9}{20}+\frac{10}{20}\)

\(=\frac{19}{20}\)

Answer 9

đây  là toán lớp 1 á 

Answer 10

19/20

Answer 11

\(\frac{1}{4}+\frac{1}{5}+\frac{1}{2}\)

\(=\frac{5}{20}+\frac{4}{20}+\frac{10}{20}\)

\(=\frac{19}{20}\)

Answer 12

=19/20

Answer 13

thank các ban

Answer 14

=5/20+4/20+10/20

=5+4+10/20

=19/20

Answer 15

\(\frac{1}{4}+\frac{1}{5}+\frac{1}{2}\)

\(=\frac{5}{20}+\frac{4}{20}+\frac{10}{20}\)

\(=\frac{5+4+10}{20}\)

\(=\frac{19}{20}\)

Answer 16

\(\frac{1}{4}+\frac{1}{5}+\frac{1}{2}\)

\(=\frac{5}{20}+\frac{4}{20}+\frac{10}{20}\)

\(=\frac{5+4+10}{20}\)

\(=\frac{19}{20}\)

~Hok tốt~

Answer 17

1/5=1.4/5.4=4/20

1/2=1.10/2.10=10/20

1/4=1.5/4.5=5/20

4/20+5/20+10/20=19/20

Answer 18

\(\frac{1}{4}+\frac{1}{5}+\frac{1}{2}\)

\(=\frac{5}{20}+\frac{4}{20}+\frac{10}{20}\)

\(=\frac{5+4+10}{20}\)

\(=\frac{19}{20}\)

Answer 19

1/4+1/5+1/2=19/20 tk mk nha

Answer 20

19/20 nhé bn