Subtract: ⁶/₈ - ²/₃ =

Question

Quizplus · Accepted Answer

Step 1: Find the Least Common Denominator (LCD). There are two ways we can do this:
Method 1: Find the first common multiple. List out all multiples of each denominator and find the first common one.
Multiples of 8: 8, 16, 24…
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24…
Therefore, LCD is 24.
Method 2: Prime Factors. The LCD will be the product of the largest multiple of each prime that appears on at least one list.
Prime factors of 8: 2, 2, 2
Prime factors of 3: 3
So, the LCD is 2 x 2 x 2 x 3 = 24
Step 2: Make the denominators the same as the LCD.
 11ec0fda_98d0_7ccd_a67f_33715a8da2af_NR0004_00 Step 3: Simplify. The denominators are now the same.
 11ec0fda_98d0_7cce_a67f_95211eaf5ac2_NR0004_00 Step 4: Join the denominators.
 11ec0fda_98d0_7ccf_a67f_7d3fddb63037_NR0004_00 Step 5: Simplify.
 11ec0fda_98d0_7cd0_a67f_89ae000924cd_NR0004_00

Subtract: 6/8 - 2/3 =

Subtract: ⁶/₈ - ²/₃ =