Respuesta:
Coronita plis. :))
Explicación paso a paso:
1. 1/5 x ( 1/2 + 1/3 ) =1. 1/5 x ( 1/2 + 1/3 ) =
[tex]\frac{1}{5}[/tex] x [tex]\frac{5}{6}[/tex] = [tex]\frac{31}{30}[/tex]
2. ( 2/3 - 1/2 ) ÷ ( 1/3 - 1/5 )=
[tex]\frac{1}{6}[/tex] ÷ [tex]\frac{2}{15}[/tex] = [tex]\frac{15}{12}[/tex] = 1 [tex]\frac{3}{12}[/tex] = 1 [tex]\frac{1}{4}[/tex]
3. 1/10 ÷ ( 2/3 - 3/5 ) =
[tex]\frac{1}{10}[/tex] ÷ [tex]\frac{1}{15}[/tex] = [tex]\frac{15}{10}[/tex] = 1 [tex]\frac{5}{10}[/tex] = 1 [tex]\frac{1}{2}[/tex]
4. 7/4 ÷ ( 4/3 - 2/8 ) =
[tex]\frac{7}{4}[/tex] ÷ [tex]\frac{26}{24}[/tex] = [tex]\frac{168}{104}[/tex] = [tex]\frac{84}{52}[/tex] = [tex]\frac{42}{26}[/tex] = [tex]\frac{21}{13}[/tex] = 1 [tex]\frac{8}{13}[/tex]
5. 5/3 – (2/5 x 7/2 ) =
[tex]\frac{5}{3}[/tex] - [tex]\frac{14}{10}[/tex] = [tex]\frac{8}{30}[/tex] = [tex]\frac{4}{15}[/tex]
6. 5/6 + 13/8 - 5/12 =
[tex]\frac{118}{48}[/tex] - [tex]\frac{5}{12}[/tex] = [tex]\frac{1176}{576}[/tex] = 2 [tex]\frac{24}{576}[/tex] = 2 [tex]\frac{2}{48}[/tex] = 2 [tex]\frac{1}{24}[/tex]
7. 2/3 + 4/9 - 3/5 =
[tex]\frac{30}{27}[/tex] - [tex]\frac{3}{5}[/tex] = [tex]\frac{69}{135}[/tex] = [tex]\frac{23}{45}[/tex]
8. ( 5/6 + 5/4 ) x ( 7/10 - 1/4 ) =
[tex]\frac{50}{24}[/tex] x [tex]\frac{18}{40}[/tex] = [tex]\frac{900}{960}[/tex] = [tex]\frac{90}{96}[/tex] = [tex]\frac{15}{16}[/tex]
9. 33/4 + 12/7 =
[tex]\frac{279}{28}[/tex]
10. 3/10 ÷ ( 7/4 - 2/5 ) =
[tex]\frac{3}{10}[/tex] ÷ [tex]\frac{27}{20}[/tex] = [tex]\frac{60}{270}[/tex] = [tex]\frac{6}{27}[/tex]
