Add 30/28 and 21/49
1st number: 1 2/28, 2nd number: 21/49
30/28 + 21/49 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 49 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 28 × 7 = 196,
30/28 = 30 × 7/28 × 7 = 210/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
21/49 = 21 × 4/49 × 4 = 84/196 - Add the two like fractions:
210/196 + 84/196 = 210 + 84/196 = 294/196 - 294/196 simplified gives 3/2
- So, 30/28 + 21/49 = 3/2
In mixed form: 11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28+21/49 30/28+42/49 30/56+21/49 30/28+21/98 90/28+21/49 30/28+63/49 30/84+21/49