Add 20/2 and 49/81
1st number: 10 0/2, 2nd number: 49/81
20/2 + 49/81 is 859/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 2 × 81 = 162,
20/2 = 20 × 81/2 × 81 = 1620/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
49/81 = 49 × 2/81 × 2 = 98/162 - Add the two like fractions:
1620/162 + 98/162 = 1620 + 98/162 = 1718/162 - 1718/162 simplified gives 859/81
- So, 20/2 + 49/81 = 859/81
In mixed form: 1049/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2+49/81 20/2+98/81 20/4+49/81 60/2+49/81 20/6+49/81 20/10+49/81 20/14+49/81