Solve the following exercise:
64−93=?
To solve this problem, let's go step by step:
- Step 1: Identify the Least Common Denominator (LCD).
- The denominators are 6 and 9.
- The multiples of 6 are 6, 12, 18, 24, ...
- The multiples of 9 are 9, 18, 27, 36, ...
- The smallest common multiple is 18.
- Step 2: Rewrite the fractions with the common denominator of 18.
- 64 can be converted by finding an equivalent fraction with a denominator of 18: 6×34×3=1812.
- 93 can be converted similarly: 9×23×2=186.
- Step 3: Subtract the two fractions.
- Subtract the numerators: 12−6=6.
- The result is 186.
- Step 4: Simplify the resulting fraction.
- 186 simplifies to 31 by dividing both the numerator and the denominator by 6.
Therefore, the solution to the problem is 31.