Add 48/28 and 80/45
1st number: 1 20/28, 2nd number: 1 35/45
48/28 + 80/45 is 220/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
48/28 = 48 × 45/28 × 45 = 2160/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
80/45 = 80 × 28/45 × 28 = 2240/1260 - Add the two like fractions:
2160/1260 + 2240/1260 = 2160 + 2240/1260 = 4400/1260 - 4400/1260 simplified gives 220/63
- So, 48/28 + 80/45 = 220/63
In mixed form: 331/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/28+80/45 48/56+80/45 48/28+80/90 48/84+80/45