Solve the following exercise:
53−31=?
To solve the subtraction of fractions 53−31, follow these steps:
- Step 1: Find the Least Common Denominator (LCD)
The denominators are 5 and 3. The least common multiple of 5 and 3 is 15. Thus, the common denominator will be 15.
- Step 2: Convert fractions to have the same denominator
For 53, multiply both the numerator and the denominator by 3 to get:
53=5×33×3=159.
For 31, multiply both the numerator and the denominator by 5 to get:
31=3×51×5=155.
- Step 3: Subtract the numerators
Now subtract the equivalent fractions:
159−155=159−5=154.
- Step 4: Simplify the fraction
The fraction 154 is already in its simplest form.
Thus, the solution to the problem is 154.