Add 30/20 and 16/15
1st number: 1 10/20, 2nd number: 1 1/15
30/20 + 16/15 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
30/20 = 30 × 3/20 × 3 = 90/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
16/15 = 16 × 4/15 × 4 = 64/60 - Add the two like fractions:
90/60 + 64/60 = 90 + 64/60 = 154/60 - 154/60 simplified gives 77/30
- So, 30/20 + 16/15 = 77/30
In mixed form: 217/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20+16/15 30/20+32/15 30/40+16/15 30/20+16/30 90/20+16/15 30/20+48/15 30/60+16/15 30/20+16/45 30/20+80/15 30/20+16/75