Add 2/7 and 28/30
2/7 + 28/30 is 128/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
2/7 = 2 × 30/7 × 30 = 60/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
28/30 = 28 × 7/30 × 7 = 196/210 - Add the two like fractions:
60/210 + 196/210 = 60 + 196/210 = 256/210 - 256/210 simplified gives 128/105
- So, 2/7 + 28/30 = 128/105
In mixed form: 123/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/7+28/30 2/7+56/30 2/14+28/30 2/7+28/60 6/7+28/30 2/7+84/30 2/21+28/30 2/7+28/90 10/7+28/30 2/35+28/30 14/7+28/30 2/49+28/30