Add 16/20 and 3/81
16/20 + 3/81 is 113/135.
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,
16/20 = 16 × 81/20 × 81 = 1296/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
3/81 = 3 × 20/81 × 20 = 60/1620 - Add the two like fractions:
1296/1620 + 60/1620 = 1296 + 60/1620 = 1356/1620 - 1356/1620 simplified gives 113/135
- So, 16/20 + 3/81 = 113/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20+3/81 16/20+6/81 16/40+3/81 48/20+3/81 16/20+9/81 16/60+3/81 80/20+3/81 16/20+15/81 16/20+21/81