3+2/5
=15/5+3/5
=18/5
4-5/7
=28/7- 5/7
= 23/7
1- (2/5+1/3)
=1- 11/15
=4/15
3+2/5
=15/5+3/5
=18/5
4-5/7
=28/7- 5/7
= 23/7
1- (2/5+1/3)
=1- 11/15
=4/15
3+2/5
=15/5+3/5
=18/5
4-5/7
=28/7- 5/7
= 23/7
1- (2/5+1/3)
=1- 11/15
=4/15
3+2/5
=15/5+3/5
=18/5
4-5/7
=28/7- 5/7
= 23/7
1- (2/5+1/3)
=1- 11/15
=4/15
3+2/5
=15/5+3/5
=18/5
4-5/7
=28/7- 5/7
= 23/7
1- (2/5+1/3)
=1- 11/15
=4/15
\(3+\frac{2}{5}=3\frac{2}{5}=\frac{17}{5}.\)
\(4-\frac{5}{7}=\frac{4}{1}-\frac{5}{7}=\frac{28}{7}-\frac{5}{7}=\frac{23}{7}.\)
\(1-\left(\frac{2}{5}+\frac{1}{3}\right)=1-\left(\frac{6}{15}+\frac{5}{15}\right)=1-\frac{11}{15}=\frac{4}{15}.\)
