Add 72/54 and 14/20
1st number: 1 18/54, 2nd number: 14/20
72/54 + 14/20 is 61/30.
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,
72/54 = 72 × 10/54 × 10 = 720/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
14/20 = 14 × 27/20 × 27 = 378/540 - Add the two like fractions:
720/540 + 378/540 = 720 + 378/540 = 1098/540 - 1098/540 simplified gives 61/30
- So, 72/54 + 14/20 = 61/30
In mixed form: 21/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/54+28/20 72/54+14/40 72/54+42/20 72/54+14/60 72/54+70/20 72/54+98/20