Question

Tính nhanh;

12/27+5/8+2/5+15/27+3/5+3/8

giúp mình với

Answer 1

\(\frac{12}{27}+\frac{5}{8}+\frac{2}{5}+\frac{15}{27}+\frac{3}{5}+\frac{3}{8}\)

\(=\left(\frac{12}{27}+\frac{15}{27}\right)+\left(\frac{5}{8}+\frac{3}{8}\right)+\left(\frac{2}{5}+\frac{3}{5}\right)\)

\(=1+1+1\)

\(=3\)

Answer 2

(12/27+15/27)+(5/8+3/8)+3/5

=1+1+3/5

=2+3/5

=13/5

chúc em học tốt

Answer 3

      \(\frac{12}{27}+\frac{5}{8}+\frac{2}{5}+\frac{15}{27}+\frac{3}{5}+\frac{3}{8}\)

\(=\left(\frac{12}{27}+\frac{15}{27}\right)+\left(\frac{5}{8}+\frac{3}{8}\right)+\left(\frac{2}{5}+\frac{3}{5}\right)\)

\(=1+1+1\)

\(=3\)

Answer 4

= ( 12/27 + 15/27 ) + ( 5/8 + 3/8 ) + ( 2/5 + 3/5 )

= 1 + 1 + 1

= 3

k cho minh nha

chúc bạn học tôt

Answer 5

(12/27+15/27)+(5/8+3/8)+(2/5+3/5)

=     1             +        1      +    1

=                            3