Add 60/12 and 50/21
1st number: 5 0/12, 2nd number: 2 8/21
60/12 + 50/21 is 155/21.
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,
60/12 = 60 × 7/12 × 7 = 420/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
50/21 = 50 × 4/21 × 4 = 200/84 - Add the two like fractions:
420/84 + 200/84 = 420 + 200/84 = 620/84 - 620/84 simplified gives 155/21
- So, 60/12 + 50/21 = 155/21
In mixed form: 78/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/24+50/21 60/12+50/42 60/36+50/21 60/12+50/63 60/84+50/21