Sagot :
[tex] \frac{7}{43} + \frac{20}{43} + \frac{4}{43} \\ = \frac{7+20+4}{43} \\ = \frac{31}{43} [/tex]
[tex]\frac{7}{43} + \frac{20}{43} + \frac{4}{43} = \frac{7+20+4}{43 } = \frac{31}{43}[/tex]