Add 25/20 and 72/10
1st number: 1 5/20, 2nd number: 7 2/10
25/20 + 72/10 is 169/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
25/20 = 25 × 1/20 × 1 = 25/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
72/10 = 72 × 2/10 × 2 = 144/20 - Add the two like fractions:
25/20 + 144/20 = 25 + 144/20 = 169/20 - So, 25/20 + 72/10 = 169/20
In mixed form: 89/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/20+72/10 25/40+72/10 25/20+72/20 75/20+72/10 25/60+72/10 25/20+72/30 25/20+72/50 25/20+72/70