You need to know the least common denominator (LCD) of 37 and 7 if you want to add or subtract two fractions with 37 and 7 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 37 and 7 is 259.
Here is a math problem example where you need to know the LCD of 37 and 7 to solve:
3/37 + 2/7 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
259/37 = 7
259/7 = 37
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 7 = 21
2 x 37 = 74
Step 3) Put it all together to solve the problem:
21/259 + 74/259 = 95/259
= 3/37 + 2/7 = 95/259
It's that easy! Once again, the lowest common denominator (LCD) of 37 and 7 is as follows:
259
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