The question seems to mix two different units: pens, which are a form of currency in the UK, and pounds, which is also a currency unit. To clarify: 25 pens is equivalent to 0.25 pounds. Therefore, 25 pens minus 1 pound would be -0.75 pounds or a negative value, indicating a deficit.
1 pound is 100 p(ence).
3 pounds minus 1 pound and 5 ounces = 2 pounds 5 ounces
It is: 1 - -25 = 26
1/4 pound.
-1
1 pound is equal to 16 ounces. Therefore, when you subtract 12 ounces from 1 pound, you are left with 4 ounces.
25-2 = 1/(252) = 1/625
It is: 1-26 = -25
1/4 pound = 4 ounces or .25 pounds.
25% of a pound would be 4 ounces. There are 16 oz. in a pound.
1 minus 25/28 is 3/28
There are 16 ounces in one pound. Therefore, 16 x 1/3 = 5.3 recurring (that is, 5.3333..) ounces.