a. 889972 + 96308 = 986280
b. $\frac{7}{8}$ + $\frac{3}{4}$ = $\frac{7}{8} + \frac{6}{8} =\frac{13}{8}$
c. 2 - $\frac{5}{6}$ = $\frac{12}{6} - \frac{5}{6}=\frac{7}{6}$
d. 726,83 - 349,67 = 377,16
a. 889972 + 96308 = 986280
b. $\frac{7}{8}$ + $\frac{3}{4}$ = $\frac{7}{8} + \frac{6}{8} =\frac{13}{8}$
c. 2 - $\frac{5}{6}$ = $\frac{12}{6} - \frac{5}{6}=\frac{7}{6}$
d. 726,83 - 349,67 = 377,16