(-1/5)
-2 (negative two) The multiplicative inverse (reciprocal) for a number x is 1/x.
3 and a half = 7/2 so its multiplicative inverse is 2/7.
Multiplying by 1 and a half.
2
Since subtraction is the inverse function of addition, the additive inverse of one half is minus one half.
(-1/5)
-2 (negative two) The multiplicative inverse (reciprocal) for a number x is 1/x.
3 and a half = 7/2 so its multiplicative inverse is 2/7.
Multiplying by 1 and a half.
-1/2
2
Mathematically, an inverse is an opposite, it is something that reverses what its inverse does, for example, addition and subtraction are inverse functions, as are multiplication and division. The inverse of a fraction is obtained by exchanging numerator and denominator; the inverse of a half is two.
(1/2) / (1/16) = (1/2) * (16/1) division equals multiplication by the inverse and the inverse of 1/16 is 16/1.= 16/2 = 8Another way to look at it is: 16 sixteenths make one. So half of them make a half ie 8 sixteenths make a half.
2/13
2 over 15
the inverse of any number is the fraction of ONE over that number. so, inverse of ten is ONE/TEN or one tenth. the inverse of 3 is ONE/THREE or one third the inverse of one fourth is a bit trickier, but not if you go slowly, ONE over ONE FOURTH, which mathematically changes to 4. the inverse of cat is ONE over CAT (which is senseless, but might help you remember how to do inverses).