Add 20/12 and 40/25
1st number: 1 8/12, 2nd number: 1 15/25
20/12 + 40/25 is 49/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
20/12 = 20 × 25/12 × 25 = 500/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
40/25 = 40 × 12/25 × 12 = 480/300 - Add the two like fractions:
500/300 + 480/300 = 500 + 480/300 = 980/300 - 980/300 simplified gives 49/15
- So, 20/12 + 40/25 = 49/15
In mixed form: 34/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+40/25 20/12+80/25 20/24+40/25 20/12+40/50 60/12+40/25 20/36+40/25 20/12+40/75 20/60+40/25 20/84+40/25