7/21+7 =7.33
9/21 =0.42
Объяснение:
5 7/21+7 9/21 =12.7619047619
57/21=2.71428571429
7 9/21 =3.7619047619
2.71428571429+3.7619047619 =12.7619047619
7/21+7 =7.33
9/21 =0.42
Объяснение:
5 7/21+7 9/21 =12.7619047619
57/21=2.71428571429
7 9/21 =3.7619047619
2.71428571429+3.7619047619 =12.7619047619