Add 28/10 and 30/45
1st number: 2 8/10, 2nd number: 30/45
28/10 + 30/45 is 52/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
28/10 = 28 × 9/10 × 9 = 252/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
30/45 = 30 × 2/45 × 2 = 60/90 - Add the two like fractions:
252/90 + 60/90 = 252 + 60/90 = 312/90 - 312/90 simplified gives 52/15
- So, 28/10 + 30/45 = 52/15
In mixed form: 37/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10+30/45 28/10+60/45 28/20+30/45 28/10+30/90 84/10+30/45 28/10+90/45 28/30+30/45 28/50+30/45 28/70+30/45