Question

Calculati :
a) $\frac{5}{4} + \frac{7}{4} +1$
b)$\frac{11}{9} - \frac{2}{9} -1$

Answer 1

a)$\frac{5}{4} + \frac{7}{4} = \frac{12}{4}$⇔$\frac{12}{4}$ + 1=$\frac{12+4}{4}$ = $\frac{16}{4}$ = 4 b) $\frac{11}{9} - \frac{2}{9} = \frac{9}{9}$⇔$\frac{9}{9} - 1= \frac{9-9}{9} = \frac{0}{9}$