Find the largest number in the range and the smallest. in this case its 15 and 30. then subtract 15 from 30, basically subtract the least number from the greatest
Our goal here is to somehow "surgically remove" the repeating part of the number, so let's start by putting the original value in a variable and messing around with it a bit.
We'll let . We want to cut the bit off completely, so let's create the scalpel that'll let us do that. If , then we can also say that . Maybe I was lying a bit: the is our real scalpel here, and is where we'll be making the cut. Mathematically, a "cut" is almost always shorthand for subtraction, so let's see what our operation (cutting off of ) leaves us with:
The operation was a success! We can now simply divide either side by 9 to find , which, when reduced by dividing the numerator and denominator by 3, gives us
Zane grew 3/5 of an inch during the first year and 1/2 an inch during the second. First, you have to make sure the denominators are the same number. Then, add the numerators. Simplify if needed.