Solve the following exercise:
54−31=?
To solve the subtraction of these two fractions, we'll follow these steps:
- Step 1: Find a common denominator for the fractions 54 and 31. The denominators are 5 and 3, and multiplying them gives us a common denominator of 15.
- Step 2: Convert each fraction to have this common denominator:
- Convert 54 to an equivalent fraction with a denominator of 15. To do this, multiply both the numerator and the denominator by 3:
54=5×34×3=1512.
- Convert 31 to an equivalent fraction with a denominator of 15. To do this, multiply both the numerator and the denominator by 5:
31=3×51×5=155.
- Step 3: Perform the subtraction of the numerators, now having the same denominator:
1512−155=1512−5=157.
- Step 4: Simplify the result, if possible. In this case, 157 is already in its simplest form as 7 and 15 have no common factors other than 1.
Therefore, the solution to the problem is 157.