Question

А) 1/4 + 3/8 * 1целая 2/3 б) 1ц 1/6 * 3/14 - 10 в) 3ц1/6 * 1ц 1/2 - 4

Answer 1

А) надо 1/4 возвести в 2 раза, после перед умножением надо перевести из смешаной дроби в неправильную и получится 5/3, после скаладываем 2/8+3/8=5/8*5/3=25/24=1целая 1/24

Answer 2

a) To solve this expression, we need to convert the mixed number 1 целая 2/3 to an improper fraction:

1 целая 2/3 = 1 * 3 + 2/3 = 5/3

Then, we can multiply the denominator of the second fraction (8) by the whole number (3) and add the numerator (3) to get the equivalent fraction:

3/8 * 1 целая 2/3 = 3/8 * (3 * 3/3 + 3/3) = 3/8 * 10/3 = 5/4

Now we can add the two fractions:

1/4 + 5/4 = 6/4 = 3/2

Therefore, the result is 3/2.

b) First, we need to convert the mixed number 1 целая 1/6 to an improper fraction:

1 целая 1/6 = 1 * 6 + 1/6 = 7/6

Then, we can multiply this fraction by the second fraction:

7/6 * 3/14 = 1/2

Finally, we subtract 10:

1/2 - 10 = -19/2

Therefore, the result is -19/2.

c) We can start by converting both mixed numbers to improper fractions:

3 целая 1/6 = 3 * 6 + 1/6 = 19/6

1 целая 1/2 = 1 * 2 + 1/2 = 3/2

Then, we can multiply these two fractions:

19/6 * 3/2 = 19/4

Finally, we subtract 4:

19/4 - 4 = 3/4

Therefore, the result is 3/4.