Add 30/45 and 25/28
30/45 + 25/28 is 131/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
30/45 = 30 × 28/45 × 28 = 840/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
25/28 = 25 × 45/28 × 45 = 1125/1260 - Add the two like fractions:
840/1260 + 1125/1260 = 840 + 1125/1260 = 1965/1260 - 1965/1260 simplified gives 131/84
- So, 30/45 + 25/28 = 131/84
In mixed form: 147/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/45+25/28 30/45+50/28 30/90+25/28 30/45+25/56 90/45+25/28 30/45+75/28 30/45+25/84