To subtract fractions, we need to have a common denominator.
For the first subtraction:
8/25 - 4/5
We need to find a common denominator, which is 25.
8/25 - 20/25 = -12/25
For the second subtraction:
-2/7 - 17/42
We need to find a common denominator, which is 42.
-12/42 - 17/42 = -29/42
For the third subtraction:
3/10 - 8/15
We need to find a common denominator, which is 30.
9/30 - 16/30 = -7/30
Therefore, the results of the subtractions are:
1) -12/22) -29/43) -7/30
To subtract fractions, we need to have a common denominator.
For the first subtraction:
8/25 - 4/5
We need to find a common denominator, which is 25.
8/25 - 20/25 = -12/25
For the second subtraction:
-2/7 - 17/42
We need to find a common denominator, which is 42.
-12/42 - 17/42 = -29/42
For the third subtraction:
3/10 - 8/15
We need to find a common denominator, which is 30.
9/30 - 16/30 = -7/30
Therefore, the results of the subtractions are:
1) -12/2
2) -29/4
3) -7/30