Add 1/20 and 10/81
1/20 + 10/81 is 281/1620.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 20 × 81 = 1620,
1/20 = 1 × 81/20 × 81 = 81/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
10/81 = 10 × 20/81 × 20 = 200/1620 - Add the two like fractions:
81/1620 + 200/1620 = 81 + 200/1620 = 281/1620 - So, 1/20 + 10/81 = 281/1620
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20+10/81 1/20+20/81 1/40+10/81 3/20+10/81 1/20+30/81 1/60+10/81 5/20+10/81 1/20+50/81 7/20+10/81 1/20+70/81