Add 30/5 and 28/72
1st number: 6 0/5, 2nd number: 28/72
30/5 + 28/72 is 115/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 5 × 72 = 360,
30/5 = 30 × 72/5 × 72 = 2160/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
28/72 = 28 × 5/72 × 5 = 140/360 - Add the two like fractions:
2160/360 + 140/360 = 2160 + 140/360 = 2300/360 - 2300/360 simplified gives 115/18
- So, 30/5 + 28/72 = 115/18
In mixed form: 67/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/5+28/72 30/5+56/72 30/10+28/72 90/5+28/72 30/5+84/72 30/15+28/72 30/25+28/72 30/35+28/72