Iwill award !

the number a is smaller than the number b by 1/5 of b . by what part of a is b bigger than a?

1/4

Step-by-step explanation:

So, we can create this representation of a in relation with b, since we know a is smaller than b by 1/5 of b, we can say that a is equal to 4/5 of b, right?

To invert the ratio, we need to isolate B, so we multiply both sides of the equation by 5/4

So, we have b being 1/4 bigger than a.