Add 7/54 and 81/20
1st number: 7/54, 2nd number: 4 1/20
7/54 + 81/20 is 2257/540.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
7/54 = 7 × 10/54 × 10 = 70/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
81/20 = 81 × 27/20 × 27 = 2187/540 - Add the two like fractions:
70/540 + 2187/540 = 70 + 2187/540 = 2257/540 - So, 7/54 + 81/20 = 2257/540
In mixed form: 497/540
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/54+81/20 7/54+81/40 21/54+81/20 7/54+81/60 35/54+81/20 49/54+81/20