You need to know the least common denominator (LCD) of 80 and 53 if you want to add or subtract two fractions with 80 and 53 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 80 and 53 is 4240.
Here is a math problem example where you need to know the LCD of 80 and 53 to solve:
3/80 + 2/53 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
4240/80 = 53
4240/53 = 80
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 53 = 159
2 x 80 = 160
Step 3) Put it all together to solve the problem:
159/4240 + 160/4240 = 319/4240
= 3/80 + 2/53 = 319/4240
It's that easy! Once again, the lowest common denominator (LCD) of 80 and 53 is as follows:
4240
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