Respuesta :

Cyu437
2/7 = 0.29 ---- rounded up  plus the 7 = 7.29

(-2 3/7)   3/7 = 0.43 ---rounded up ---- plus the -2 = -2.43

7.29 - (- 2.43) = 9.72 -----  negative and negative equal posirive


#18
-2.45 - (-3.94) = 1.49