Add 35/5 and 21/30
1st number: 7 0/5, 2nd number: 21/30
35/5 + 21/30 is 77/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
35/5 = 35 × 6/5 × 6 = 210/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
21/30 = 21 × 1/30 × 1 = 21/30 - Add the two like fractions:
210/30 + 21/30 = 210 + 21/30 = 231/30 - 231/30 simplified gives 77/10
- So, 35/5 + 21/30 = 77/10
In mixed form: 77/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/5+21/30 35/5+42/30 35/10+21/30 35/5+21/60 35/5+63/30 35/15+21/30 35/5+21/90 35/25+21/30