Question

решите уравнение: 8 целых 4/9-m=3 целых 7/9;  

Answer 1

8 4/9-m=3 7/9

8 4/9-3 7/9=m

7 13/9-3 7/9=m

4 6/9=m

4 2/3=m

проверка

8 4/9-4 2/3=3 7/9

8 4/9-4 6/9=3 7/9

7 13/9-4 6/9 =3 7/9

3 7/9=3 7/9