Add 70/28 and 49/20
1st number: 2 14/28, 2nd number: 2 9/20
70/28 + 49/20 is 99/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
70/28 = 70 × 5/28 × 5 = 350/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
49/20 = 49 × 7/20 × 7 = 343/140 - Add the two like fractions:
350/140 + 343/140 = 350 + 343/140 = 693/140 - 693/140 simplified gives 99/20
- So, 70/28 + 49/20 = 99/20
In mixed form: 419/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/28+98/20 70/56+49/20 70/28+49/40 70/84+49/20 70/28+49/60