Add 12/5 and 54/20
1st number: 2 2/5, 2nd number: 2 14/20
12/5 + 54/20 is 51/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
12/5 = 12 × 4/5 × 4 = 48/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
54/20 = 54 × 1/20 × 1 = 54/20 - Add the two like fractions:
48/20 + 54/20 = 48 + 54/20 = 102/20 - 102/20 simplified gives 51/10
- So, 12/5 + 54/20 = 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: 24/5+54/20 12/10+54/20 12/5+54/40 36/5+54/20 12/15+54/20 12/5+54/60 60/5+54/20 12/25+54/20 84/5+54/20 12/35+54/20