You need to know the least common denominator (LCD) of 22 and 50 if you want to add or subtract two fractions with 22 and 50 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 22 and 50 is 550.
Here is a math problem example where you need to know the LCD of 22 and 50 to solve:
3/22 + 2/50 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
550/22 = 25
550/50 = 11
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 25 = 75
2 x 11 = 22
Step 3) Put it all together to solve the problem:
75/550 + 22/550 = 97/550
= 3/22 + 2/50 = 97/550
It's that easy! Once again, the lowest common denominator (LCD) of 22 and 50 is as follows:
550
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