Add 25/12 and 45/40
1st number: 2 1/12, 2nd number: 1 5/40
25/12 + 45/40 is 77/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
25/12 = 25 × 10/12 × 10 = 250/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
45/40 = 45 × 3/40 × 3 = 135/120 - Add the two like fractions:
250/120 + 135/120 = 250 + 135/120 = 385/120 - 385/120 simplified gives 77/24
- So, 25/12 + 45/40 = 77/24
In mixed form: 35/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/12+45/40 25/12+90/40 25/24+45/40 25/12+45/80 75/12+45/40 25/36+45/40 25/60+45/40 25/84+45/40