Question

Me pueden resolver las sumas de fracciones y restas pls 3/9+3/4. 2/3+7/3+4/3. 9/5+2/8. 4/6-2/9. 7/4-6/8. 5/8-4/9​​

Answer 1

Respuesta: Que te sea de ayuda.

$\frac{3}{9} + \frac{3}{4} = \frac{(3x4)+(9x3)}{9x4} = \frac{12+27}{36} = \frac{39}{36} = \frac{13}{12}$

$\frac{2}{3}+\frac{7}{3}+\frac{4}{3} = \frac{2+7+4}{3} =\frac{13}{3}$

$\frac{9}{5}+\frac{2}{8} =\frac{(9x8)+(5x2)}{5x8} =\frac{72+10}{40} =\frac{82}{40} = \frac{41}{20}$

$\frac{4}{6} -\frac{2}{9} =\frac{(4x9)-(6x2)}{6x9} =\frac{36-12}{54} =\frac{24}{54} =\frac{12}{27} =\frac{4}{9}$

$\frac{7}{4} -\frac{6}{8} =\frac{(7x8)-(4x6)}{4x8} =\frac{56-24}{32} =\frac{32}{32} =1$

$\frac{5}{8} -\frac{4}{9} =\frac{(5x9)-(8x4)}{8x9} =\frac{45-32}{72} =\frac{13}{72}$