Question

alguém pra me ajudar nessas questões
a)7/3+3/4-2/4
b)2/3+3/4+2/6

valendo pontinho alguém pra me ajudar ?​

Answer 1

$\frac{7}{3} + \frac{3}{4} - \frac{2}{4} = \frac{28 + 9 - 6}{12} = \frac{31}{12} \\ \\ \frac{2}{3} + \frac{3}{4} + \frac{2}{6} = \frac{8 + 9 + 4}{12} = \frac{21}{12}$

Answer 2

$a) \ \frac{7}{3}+\frac{3}{4} -\frac{2}{4} = \frac{28}{12}+\frac{9}{12} -\frac{6}{12} =\frac{28+9-6}{12} =\frac{31}{12}$

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$b)\ \frac{2}{3} +\frac{3}{4} +\frac{2}{6} = \frac{8}{12} +\frac{9}{12} +\frac{4}{12} =\frac{8+9+4}{12} =\frac{21^{:3}}{12_{:3}} =\frac{7}{4}$

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