а) 3 7/8 - 2 3/4 + 1/2 First, we need to convert all the fractions to have a common denominator. 3 7/8 = (3 8 + 7) / 8 = 31/8 2 3/4 = (2 4 + 3) / 4 = 11/4 1/2 = 1/2 Now we can subtract the fractions. 31/8 - 11/4 + 1/2 = 31/8 - 22/8 + 4/8 = 13/8 = 1 5/8 Therefore, 3 7/8 - 2 3/4 + 1/2 = 1 5/8
б) 3 5/14 - 1 - 6/7 First, we need to convert all the fractions to have a common denominator. 3 5/14 = (3 * 14 + 5) / 14 = 47/14 6/7 = 6/7 Now we can subtract the fractions. 47/14 - 1 - 6/7 = 47/14 - 14/14 - 12/14 = 21/14 = 1 7/14 = 1 1/14 Therefore, 3 5/14 - 1 - 6/7 = 1 1/14
а) 3 7/8 - 2 3/4 + 1/2
First, we need to convert all the fractions to have a common denominator.
3 7/8 = (3 8 + 7) / 8 = 31/8
2 3/4 = (2 4 + 3) / 4 = 11/4
1/2 = 1/2
Now we can subtract the fractions.
31/8 - 11/4 + 1/2
= 31/8 - 22/8 + 4/8
= 13/8
= 1 5/8
Therefore, 3 7/8 - 2 3/4 + 1/2 = 1 5/8
б) 3 5/14 - 1 - 6/7
First, we need to convert all the fractions to have a common denominator.
3 5/14 = (3 * 14 + 5) / 14 = 47/14
6/7 = 6/7
Now we can subtract the fractions.
47/14 - 1 - 6/7
= 47/14 - 14/14 - 12/14
= 21/14
= 1 7/14
= 1 1/14
Therefore, 3 5/14 - 1 - 6/7 = 1 1/14