Add 30/60 and 20/35
30/60 + 20/35 is 15/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
30/60 = 30 × 7/60 × 7 = 210/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
20/35 = 20 × 12/35 × 12 = 240/420 - Add the two like fractions:
210/420 + 240/420 = 210 + 240/420 = 450/420 - 450/420 simplified gives 15/14
- So, 30/60 + 20/35 = 15/14
In mixed form: 11/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60+40/35 30/60+20/70 90/60+20/35 30/60+60/35