Question

Urgente !!!
4/7-2/14?
5/6-5/12?
4/5-3/10?
2/5-2/15?
4/9+5/12?

Answer 1

4/7-2/14?

$\frac{3}{7}$

5/6-5/12?

$\frac{8}{15}$

4/5-3/10?

$\frac{1}{2} .5 \times {10}^{ - 1} . {2}^{ - 1}$

2/5-2/15?

$\frac{4}{15}$

4/9+5/12?

$\frac{31}{36}$