Question

2/3+5/9-3/4=

2/7/2/3-1/7=

2/5*1/4/3/8=

làm ơn giúp mình với

Answer 1

\(\frac{2}{3}+\frac{5}{9}-\frac{3}{4}\)

\(=\frac{24}{36}+\frac{20}{36}-\frac{27}{36}\)

\(=\frac{17}{36}\)

\(\frac{2}{7}:\frac{2}{3}-\frac{1}{7}\)

\(=\frac{3}{7}-\frac{1}{7}\)

\(=\frac{2}{7}\)

\(\frac{2}{5}\times\frac{1}{4}:\frac{3}{8}\)

\(=\frac{1}{10}:\frac{3}{8}\)

\(=\frac{8}{30}\)

\(=\frac{4}{15}\)

Answer 2

2/3 + 5/9 - 3/4

= 11/9 - 3/4

=  17/36

2/7 : 2/3 - 1/7

= 3/7  - 1/7

=   2/7

2/5 * 1/4 : 3/8

= 1/10 : 3/8

= 4/15

Answer 3

2/3+5/9-3/4=17/36 2/7÷2/3-1/7=2/7 2/5×1/4÷3/8=4/15 k nha