12 4/5*3 3/4-4 4/11*4 1/8 дробь 11 2/3÷2 4/7

Предыдущий
вопрос Следующий
вопрос

To solve this expression, we will first convert all mixed numbers to improper fractions:

12 4/5 = 64/5
3 3/4 = 15/4
4 4/11 = 48/11
4 1/8 = 33/8
11 2/3 = 35/3
2 4/7 = 18/7

Now we can substitute the values back into the equation and solve:

(64/5) (15/4) - (48/11) (33/8) ÷ (35/3) / (18/7)

First we multiply the first set of fractions:

(64/5) * (15/4) = 960/20

Next, we multiply the second set of fractions:

(48/11) * (33/8) = 1584/88

Now, we substitute these results back into the expression and simplify:

960/20 - 1584/88 ÷ (35/3) / (18/7)

960/20 = 48
1584/88 = 18

48 - 18 ÷ (35/3) / (18/7)

18 ÷ (35/3) = 18 3/35 = 54/35
54/35 / (18/7) = 54/35 7/18 = 189/630

Finally, substitute this back into the expression and simplify:

48 - 189/630 = 2880/60 - 189/630 = 51/30 - 189/630
= 1530/630 - 189/630 = 1341/630

The final answer is 1341/630, which can be simplified to 447/210 or 149/70.