Question

помогите номер 83!!!!
пожалуйста

Answer 1

1)
1.3 $frac{2}{3}$ + 1 $frac{3}{4}$ = $frac{11}{3} + frac{7}{4} = frac{65}{12}$
2.$6 frac{7}{12} - 2 frac{1}{4} = frac{79}{12} - frac{9}{4} = frac{52}{12}$
3.$frac{65}{12} : frac{52}{12} = frac{65}{52}$
4.$frac{65}{52} * 0,8 = 1,25*0,8= 1$

Answer 2

2. 8 1/2 : 14= 17/28

Answer 3

3. 22/8 + 2 4/7= 22/8+18/7=298/56

Answer 4

4. 298/56 - 17/28= 264/56

Answer 5

5. 2 3/8 - 1 11/14= 19/8-25/4= 66/112

Answer 6

6. 264/56 : 66/112 (переворачиваем 2-ую дробь)= 8