Add 20/72 and 25/10
1st number: 20/72, 2nd number: 2 5/10
20/72 + 25/10 is 25/9.
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,
20/72 = 20 × 5/72 × 5 = 100/360 - Likewise, for the 2nd fraction, since 10 × 36 = 360,
25/10 = 25 × 36/10 × 36 = 900/360 - Add the two like fractions:
100/360 + 900/360 = 100 + 900/360 = 1000/360 - 1000/360 simplified gives 25/9
- So, 20/72 + 25/10 = 25/9
In mixed form: 27/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/72+25/10 20/72+50/10 20/72+25/20 60/72+25/10 20/72+75/10 20/72+25/30 20/72+25/50 20/72+25/70