Add 56/60 and 30/81
56/60 + 30/81 is 176/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 60 × 27 = 1620,
56/60 = 56 × 27/60 × 27 = 1512/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
30/81 = 30 × 20/81 × 20 = 600/1620 - Add the two like fractions:
1512/1620 + 600/1620 = 1512 + 600/1620 = 2112/1620 - 2112/1620 simplified gives 176/135
- So, 56/60 + 30/81 = 176/135
In mixed form: 141/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/60+60/81 56/60+90/81