Add 30/72 and 15/10
1st number: 30/72, 2nd number: 1 5/10
30/72 + 15/10 is 23/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 10 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
30/72 = 30 × 5/72 × 5 = 150/360 - Likewise, for the 2nd fraction, since 10 × 36 = 360,
15/10 = 15 × 36/10 × 36 = 540/360 - Add the two like fractions:
150/360 + 540/360 = 150 + 540/360 = 690/360 - 690/360 simplified gives 23/12
- So, 30/72 + 15/10 = 23/12
In mixed form: 111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+15/10 30/72+30/10 30/72+15/20 90/72+15/10 30/72+45/10 30/72+15/30 30/72+75/10 30/72+15/50 30/72+15/70