4/5 + 3/15 - 2/3 = 1/3
Step-by-step explanation:
If wrong i´m sorry but this is what i got ;-;
Add: 4/
5
+ 3/
15
= 4 · 3/
5 · 3
+ 3/
15
= 12/
15
+ 3/
15
= 12 + 3/
15
= 15/
15
= 15 · 1/
15 · 1
= 1
For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(5, 15) = 15. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 5 × 15 = 75. In the following intermediate step, cancel by a common factor of 15 gives 1/1.
In other words - four fifths plus three fifteenths = one.
Subtract: the result of step No. 1 - 2/
3 = 1 - 2/3= 1/1- 2/3 = 1 · 3/1 · 3 - 2/3 = 3/3 - 2/3 = 3 - 2/3 = 1/3
For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(1, 3) = 3. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 1 × 3 = 3. In the following intermediate step, it cannot further simplify the fraction result by canceling.
In other words - one minus two thirds = one third.
