Question

1 tính.

3/5+6/4+5/2=....

6/15+5/3+2/5=...

 

6/18+/15+8/12=..

 

Answer 1

\(\frac{3}{5}+\frac{6}{4}+\frac{5}{2}=\frac{12}{20}+\frac{30}{20}+\frac{50}{20}+\frac{12+30+50}{20}\\ =\frac{92}{20}=\frac{23}{5}\)

Answer 2

1/=21/10 .da rut gon       2/=199/30

Answer 3

\(\frac{6}{15}+\frac{5}{3}+\frac{2}{5}=\frac{6}{15}+\frac{25}{15}+\frac{6}{15}\\ =\frac{37}{15}\)