Add 54/30 and 72/20
1st number: 1 24/30, 2nd number: 3 12/20
54/30 + 72/20 is 27/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
54/30 = 54 × 2/30 × 2 = 108/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
72/20 = 72 × 3/20 × 3 = 216/60 - Add the two like fractions:
108/60 + 216/60 = 108 + 216/60 = 324/60 - 324/60 simplified gives 27/5
- So, 54/30 + 72/20 = 27/5
In mixed form: 52/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/60+72/20 54/30+72/40 54/90+72/20 54/30+72/60