Add 25/30 and 27/40
25/30 + 27/40 is 181/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
25/30 = 25 × 4/30 × 4 = 100/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
27/40 = 27 × 3/40 × 3 = 81/120 - Add the two like fractions:
100/120 + 81/120 = 100 + 81/120 = 181/120 - So, 25/30 + 27/40 = 181/120
In mixed form: 161/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30+27/40 25/30+54/40 25/60+27/40 25/30+27/80 75/30+27/40 25/30+81/40 25/90+27/40