Add 54/45 and 5/84
1st number: 1 9/45, 2nd number: 5/84
54/45 + 5/84 is 529/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
54/45 = 54 × 28/45 × 28 = 1512/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
5/84 = 5 × 15/84 × 15 = 75/1260 - Add the two like fractions:
1512/1260 + 75/1260 = 1512 + 75/1260 = 1587/1260 - 1587/1260 simplified gives 529/420
- So, 54/45 + 5/84 = 529/420
In mixed form: 1109/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/45+10/84 54/90+5/84 54/45+15/84 54/45+25/84 54/45+35/84