Question

ayudenme rapidito porfavor​

Answer 1

Explicación paso a paso:

Fracciones:

$\frac{12}{7} + \frac{4}{7}+ \frac{20}{7}=\frac{(12)(1) +(4)(1) +(20)(1) }{7} =\frac{12+4+20}{7} =\frac{36}{7}$

$\frac{21}{13} + \frac{14}{13}+ \frac{10}{13}=\frac{(21)(1) +(14)(1) +(10)(1) }{13} =\frac{21+14+10}{13} =\frac{45}{13}$

$\frac{15}{11} + \frac{10}{11}+ \frac{21}{11}=\frac{(15)(1) +(10)(1) +(21)(1) }{11} =\frac{15+10+21}{11} =\frac{46}{11}$

$\frac{31}{17} + \frac{41}{17}+ \frac{38}{17}=\frac{(31)(1) +(41)(1) +(38)(1) }{17} =\frac{31+41+38}{17} =\frac{110}{17}$

$\frac{23}{7} - \frac{14}{7}=\frac{(23)(1) -(14)(1) }{7} =\frac{23-14}{7} =\frac{9}{7}$

$\frac{43}{11} - \frac{29}{11}=\frac{(43)(1) -(29)(1) }{11} =\frac{43-29}{11} =\frac{14}{11}$

$\frac{89}{13} - \frac{78}{13}=\frac{(89)(1) -(78)(1) }{13} =\frac{89-78}{13} =\frac{11}{13}$

$\frac{103}{19} - \frac{94}{19}=\frac{(103)(1) -(94)(1) }{19} =\frac{103-94}{19} =\frac{9}{19}$

Answer 2

Explicación paso a paso:

12+4+20=36.

7. 7. 7. 7

21+14+10= 35

13. 13. 13. 13

15+10+21= 46

11 11. 11. 11

31+41+38=110

17. 17. 17. 17

23-14=9

7. 7. 7

43-29=14

11. 11. 11

89-78=11

13. 13. 13

103-94=9

19. 19. 19