Add 4/20 and 6/81
4/20 + 6/81 is 37/135.
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,
4/20 = 4 × 81/20 × 81 = 324/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
6/81 = 6 × 20/81 × 20 = 120/1620 - Add the two like fractions:
324/1620 + 120/1620 = 324 + 120/1620 = 444/1620 - 444/1620 simplified gives 37/135
- So, 4/20 + 6/81 = 37/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/20+6/81 4/20+12/81 4/40+6/81 12/20+6/81 4/20+18/81 4/60+6/81 4/20+30/81 28/20+6/81 4/20+42/81