Add 54/20 and 72/30
1st number: 2 14/20, 2nd number: 2 12/30
54/20 + 72/30 is 51/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
54/20 = 54 × 3/20 × 3 = 162/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
72/30 = 72 × 2/30 × 2 = 144/60 - Add the two like fractions:
162/60 + 144/60 = 162 + 144/60 = 306/60 - 306/60 simplified gives 51/10
- So, 54/20 + 72/30 = 51/10
In mixed form: 51/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40+72/30 54/20+72/60 54/60+72/30 54/20+72/90