Question

Calculați oral: vâ rog mult

Answer 1

~cuplăcere~

~Este verificat și corect~

$a) \frac{1}{5} - \frac{1}{4} = - \frac{1}{20}$

$b ) \frac{3}{7} - \frac{2}{11} = \frac{19}{77}$

$c) \frac{3}{8} - \frac{5}{6} = - \frac{11}{24}$

$d) \frac{5}{9} - \frac{3}{4} = - \frac{7}{36}$

$e) \frac{7}{15} - \frac{5}{14} = \frac{23}{210}$

$f) \frac{5}{6} - \frac{3}{20} = \frac{41}{60}$