Add 50/12 and 25/21
1st number: 4 2/12, 2nd number: 1 4/21
50/12 + 25/21 is 75/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
50/12 = 50 × 7/12 × 7 = 350/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
25/21 = 25 × 4/21 × 4 = 100/84 - Add the two like fractions:
350/84 + 100/84 = 350 + 100/84 = 450/84 - 450/84 simplified gives 75/14
- So, 50/12 + 25/21 = 75/14
In mixed form: 55/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/12+50/21 50/24+25/21 50/12+25/42 50/12+75/21 50/36+25/21 50/12+25/63 50/60+25/21 50/84+25/21