Add 7/12 and 50/21
1st number: 7/12, 2nd number: 2 8/21
7/12 + 50/21 is 83/28.
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,
7/12 = 7 × 7/12 × 7 = 49/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
50/21 = 50 × 4/21 × 4 = 200/84 - Add the two like fractions:
49/84 + 200/84 = 49 + 200/84 = 249/84 - 249/84 simplified gives 83/28
- So, 7/12 + 50/21 = 83/28
In mixed form: 227/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12+50/21 7/24+50/21 7/12+50/42 21/12+50/21 7/36+50/21 7/12+50/63 35/12+50/21 7/60+50/21 49/12+50/21 7/84+50/21