You need to know the least common denominator (LCD) of 74 and 6 if you want to add or subtract two fractions with 74 and 6 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 74 and 6 is 222.
Here is a math problem example where you need to know the LCD of 74 and 6 to solve:
3/74 + 2/6 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
222/74 = 3
222/6 = 37
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 3 = 9
2 x 37 = 74
Step 3) Put it all together to solve the problem:
9/222 + 74/222 = 83/222
= 3/74 + 2/6 = 83/222
It's that easy! Once again, the lowest common denominator (LCD) of 74 and 6 is as follows:
222
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