Add 81/18 and 20/49
1st number: 4 9/18, 2nd number: 20/49
81/18 + 20/49 is 481/98.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 49 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 18 × 49 = 882,
81/18 = 81 × 49/18 × 49 = 3969/882 - Likewise, for the 2nd fraction, since 49 × 18 = 882,
20/49 = 20 × 18/49 × 18 = 360/882 - Add the two like fractions:
3969/882 + 360/882 = 3969 + 360/882 = 4329/882 - 4329/882 simplified gives 481/98
- So, 81/18 + 20/49 = 481/98
In mixed form: 489/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/18+40/49 81/36+20/49 81/18+20/98 81/18+60/49 81/54+20/49 81/90+20/49