You need to know the least common denominator (LCD) of 45 and 59 if you want to add or subtract two fractions with 45 and 59 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 45 and 59 is 2655.
Here is a math problem example where you need to know the LCD of 45 and 59 to solve:
3/45 + 2/59 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
2655/45 = 59
2655/59 = 45
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 59 = 177
2 x 45 = 90
Step 3) Put it all together to solve the problem:
177/2655 + 90/2655 = 267/2655
= 3/45 + 2/59 = 267/2655
It's that easy! Once again, the lowest common denominator (LCD) of 45 and 59 is as follows:
2655
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