Question

7/9-4/8=
7/20-3/10=
5/4+2/3+1/6=
5/7+5/6=
20/7-5/6=
1/3+4/5-8/7=
7/8-2/3​

Answer 1

Respuesta:

$\frac{7}{9} - \frac{4}{8} = \frac{56}{72} - \frac{36}{72} = \frac{20}{72}$

$\frac{7}{20} - \frac{3}{10} = \frac{7}{20} - \frac{6}{20} = \frac{1}{20}$

$\frac{5}{4} + \frac{2}{3} + \frac{1}{6} = \frac{15}{12} + \frac{8}{12} + \frac{2}{12} = \frac{25}{12}$

$\frac{5}{7} + \frac{5}{6} = \frac{30}{42} + \frac{35}{42} = \frac{65}{42}$

$\frac{20}{7} - \frac{5}{6} = \frac{120}{42} - \frac{35}{42} = \frac{155}{42}$

Explicación paso a paso:

$\frac{1}{3} + \frac{4}{5} - \frac{8}{7} = \frac{35}{105} + \frac{84}{105} - \frac{120}{105} = \frac{ - 1}{105}$

$\frac{7}{8} - \frac{2}{3} = \frac{21}{24} - \frac{16}{24} = \frac{5}{24}$