Add 49/28 and 12/20
1st number: 1 21/28, 2nd number: 12/20
49/28 + 12/20 is 47/20.
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,
49/28 = 49 × 5/28 × 5 = 245/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
12/20 = 12 × 7/20 × 7 = 84/140 - Add the two like fractions:
245/140 + 84/140 = 245 + 84/140 = 329/140 - 329/140 simplified gives 47/20
- So, 49/28 + 12/20 = 47/20
In mixed form: 27/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28+12/20 49/28+24/20 49/56+12/20 49/28+12/40 49/28+36/20 49/84+12/20 49/28+12/60 49/28+60/20 49/28+84/20