Add 18/21 and 27/50
18/21 + 27/50 is 489/350.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 21 × 50 = 1050,
18/21 = 18 × 50/21 × 50 = 900/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
27/50 = 27 × 21/50 × 21 = 567/1050 - Add the two like fractions:
900/1050 + 567/1050 = 900 + 567/1050 = 1467/1050 - 1467/1050 simplified gives 489/350
- So, 18/21 + 27/50 = 489/350
In mixed form: 1139/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/21+27/50 18/21+54/50 18/42+27/50 54/21+27/50 18/21+81/50 18/63+27/50 90/21+27/50