Answer is: 1
Explaination:
2 · 2 + 1/2 = 4 + 1/
2= 5/2
To find a new numerator:
a) Multiply the whole number 2 by the denominator 2. Whole number 2 equally 2 * 2/2
= 4/2
b) Add the answer from previous step 4 to the numerator 1. New numerator is 4 + 1 = 5
c) Write a previous answer (new numerator 5) over the denominator 2.
Two and one half is five halfs
Subtract: 5/2
- the result of step No. 4 = 5/2
- 3/2
= 5 - 3/2
= 2/2
= 2 · 1/2 · 1
= 1
It is suitable to adjust both fractions to a common (equal, identical) denominator for adding, subtracting, and comparing fractions. The common denominator you can calculate as the least common multiple of both denominators - LCM(2, 2) = 2. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 2 × 2 = 4. In the following intermediate step, cancel by a common factor of 2 gives 1/1.
In other words - five halfs minus three halfs is one.