Question

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

Answer 1

1/20+1/4+2/5=0,7

Answer 2

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

Answer 3

1/20+1/4+2/5=7/10 nha bn!

Answer 4

1/20 + 1/4 + 2/5 = 7/10

Answer 5

1/20 + 1/4 + 2/5 = 7/10

Answer 6

1/20+1/4+2/5=3/10+2/5=7/10

=>1/20+1/4+2/5=7/10

Vậy 1/20+1/4+2/5=7/10

Answer 7

dốt \(\frac{7}{10}\)

Answer 8

\(\frac{1}{20}\)+\(\frac{1}{4}\)+\(\frac{2}{5}\)=\(\frac{7}{10}\)=0,7

Answer 9

\(\frac{1}{20}+\frac{1}{4}+\frac{2}{5}=\frac{7}{10}\)

Answer 10

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