Add 28/30 and 75/45
1st number: 28/30, 2nd number: 1 30/45
28/30 + 75/45 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
28/30 = 28 × 3/30 × 3 = 84/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
75/45 = 75 × 2/45 × 2 = 150/90 - Add the two like fractions:
84/90 + 150/90 = 84 + 150/90 = 234/90 - 234/90 simplified gives 13/5
- So, 28/30 + 75/45 = 13/5
In mixed form: 23/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30+75/45 28/60+75/45 28/30+75/90 84/30+75/45 28/90+75/45