Question

27-29= -17-10= -17+17= -18,3-2,5= 31,5-20= 14 2/7-16 5/7=

Answer 1

27-29==-2
-17-10=-27
-17+17=0
-18,3-2,5=-20,8
31,5-20=11,5
14 2/7-16 5/7=-2 3/7

Answer 2

27-29=-2
-17-10=-17+(-10)=-27
-17+17=0
-18,3-2,5=-18,3+(-2,5)=-20,8
31,5-20=11,5
14 2/7-16 5/7=-2 3/7

Answer 3

To subtract mixed numbers like 2/7 from 16 5/7, you need to first convert them to improper fractions.

16 5/7 can be converted to the improper fraction (16 x 7 + 5) / 7 = 117/7.

2/7 can be written as the improper fraction 2/7.

So, the problem becomes:

117/7 - 2/7

To subtract fractions, you need to have a common denominator. In this case, the common denominator is 7. So, you can write:

117/7 - 2/7 = (117 - 2) / 7 = 115/7

Therefore, 14 2/7 - 16 5/7 = -2 3/7, or -2.42857 (rounded to 5 decimal places).