Add 54/15 and 4/5
1st number: 3 9/15, 2nd number: 4/5
54/15 + 4/5 is 22/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 15 × 1 = 15,
54/15 = 54 × 1/15 × 1 = 54/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
4/5 = 4 × 3/5 × 3 = 12/15 - Add the two like fractions:
54/15 + 12/15 = 54 + 12/15 = 66/15 - 66/15 simplified gives 22/5
- So, 54/15 + 4/5 = 22/5
In mixed form: 42/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+8/5 54/30+4/5 54/15+4/10 54/15+12/5 54/45+4/5 54/15+4/15 54/15+20/5 54/75+4/5 54/15+4/25 54/15+28/5 54/15+4/35