Add 30/60 and 2/28
30/60 + 2/28 is 4/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 28 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 28 × 15 = 420,
2/28 = 2 × 15/28 × 15 = 30/420 - Add the two like fractions:
210/420 + 30/420 = 210 + 30/420 = 240/420 - 240/420 simplified gives 4/7
- So, 30/60 + 2/28 = 4/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60+4/28 30/60+2/56 90/60+2/28 30/60+6/28 30/60+2/84 30/60+10/28 30/60+14/28