You need to know the least common denominator (LCD) of 75 and 2 if you want to add or subtract two fractions with 75 and 2 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 75 and 2 is 150.
Here is a math problem example where you need to know the LCD of 75 and 2 to solve:
3/75 + 2/2 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
150/75 = 2
150/2 = 75
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 2 = 6
2 x 75 = 150
Step 3) Put it all together to solve the problem:
6/150 + 150/150 = 156/150
= 3/75 + 2/2 = 156/150
It's that easy! Once again, the lowest common denominator (LCD) of 75 and 2 is as follows:
150
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