Answer:
15/25 - 2/5 = 0.2
Step-by-step explanation:
Subtract: 15/
25
- 2/
5
= 15/
25
- 2 · 5/
5 · 5
= 15/
25
- 10/
25
= 15 - 10/
25
= 5/
25
= 5 · 1/
5 · 5
= 1/
5
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(25, 5) = 25. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 25 × 5 = 125. In the following intermediate step, cancel by a common factor of 5 gives 1/
5.
hope it helps.
