To convert unlike fractions to like fractions, it is necessary to find the LCM of the unlike denominators. This will give you the least common denominator.
Example: 1/3 and 1/8. The LCM of 3 and 8 is 24. To convert 3rds to 24ths, multiply the numerator and the denominator by 8. To convert 8ths to 24ths, multiply the numerator and the denominator by 3.
1/3 + 1/8 = 8/24 + 3/24 = 11/24
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Change them to like fractions and proceed.
Yes providing you change the fractions into decimals or change the decimals into fractions
To change percentages into fractions, you simply divide by 100.
You change them into improper or topheavy fractions.
Like fractions have the same denominator, unlike fractions don't.