Add 21/60 and 84/30
1st number: 21/60, 2nd number: 2 24/30
21/60 + 84/30 is 63/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
84/30 = 84 × 2/30 × 2 = 168/60 - Add the two like fractions:
21/60 + 168/60 = 21 + 168/60 = 189/60 - 189/60 simplified gives 63/20
- So, 21/60 + 84/30 = 63/20
In mixed form: 33/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/60+84/30 21/60+84/60 63/60+84/30 21/60+84/90