Add 60/20 and 4/21
1st number: 3 0/20, 2nd number: 4/21
60/20 + 4/21 is 67/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
60/20 = 60 × 21/20 × 21 = 1260/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
4/21 = 4 × 20/21 × 20 = 80/420 - Add the two like fractions:
1260/420 + 80/420 = 1260 + 80/420 = 1340/420 - 1340/420 simplified gives 67/21
- So, 60/20 + 4/21 = 67/21
In mixed form: 34/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+8/21 60/40+4/21 60/20+4/42 60/20+12/21 60/20+4/63 60/20+20/21 60/20+28/21