Respuesta :
Answer:
[tex] \displaystyle \: \frac{1}{12} + \frac{7}{9} [/tex]
- Multiples of 12={12,24,36,48,60}
- Multiples of 9={9,18,27,36,45,54}
- The least common multiple=36
So,
[tex] \displaystyle{ \frac{1}{12} = \frac{1 \times 3}{12 \times 3} = \frac{3}{36} }[/tex]
[tex]\displaystyle{ \frac{7}{9} = \frac{7 \times 4}{9 \times 4} = \frac{28}{36} }[/tex]
Now,
[tex]\displaystyle{ \frac{3}{36} + \frac{28}{36} = \frac{3 + 28}{36} = \frac{31}{36} }[/tex]