Add 49/28 and 1/21
1st number: 1 21/28, 2nd number: 1/21
49/28 + 1/21 is 151/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
49/28 = 49 × 3/28 × 3 = 147/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
1/21 = 1 × 4/21 × 4 = 4/84 - Add the two like fractions:
147/84 + 4/84 = 147 + 4/84 = 151/84 - So, 49/28 + 1/21 = 151/84
In mixed form: 167/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28+1/21 49/28+2/21 49/56+1/21 49/28+1/42 49/28+3/21 49/84+1/21 49/28+1/63 49/28+5/21 49/28+7/21