You need to know the least common denominator (LCD) of 4 and 88 if you want to add or subtract two fractions with 4 and 88 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 4 and 88 is 88.
Here is a math problem example where you need to know the LCD of 4 and 88 to solve:
3/4 + 2/88 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
88/4 = 22
88/88 = 1
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 22 = 66
2 x 1 = 2
Step 3) Put it all together to solve the problem:
66/88 + 2/88 = 68/88
= 3/4 + 2/88 = 68/88
It's that easy! Once again, the lowest common denominator (LCD) of 4 and 88 is as follows:
88
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