Add 7/15 and 54/45
1st number: 7/15, 2nd number: 1 9/45
7/15 + 54/45 is 5/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
7/15 = 7 × 3/15 × 3 = 21/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
54/45 = 54 × 1/45 × 1 = 54/45 - Add the two like fractions:
21/45 + 54/45 = 21 + 54/45 = 75/45 - 75/45 simplified gives 5/3
- So, 7/15 + 54/45 = 5/3
In mixed form: 12/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15+54/45 7/30+54/45 7/15+54/90 21/15+54/45 7/45+54/45 35/15+54/45 7/75+54/45 49/15+54/45