Add 6/81 and 4/20
6/81 + 4/20 is 37/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 20 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
6/81 = 6 × 20/81 × 20 = 120/1620 - Likewise, for the 2nd fraction, since 20 × 81 = 1620,
4/20 = 4 × 81/20 × 81 = 324/1620 - Add the two like fractions:
120/1620 + 324/1620 = 120 + 324/1620 = 444/1620 - 444/1620 simplified gives 37/135
- So, 6/81 + 4/20 = 37/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/81+4/20 6/81+8/20 6/81+4/40 18/81+4/20 6/81+12/20 6/81+4/60 30/81+4/20 42/81+4/20 6/81+28/20