Add 98/28 and 5/20
1st number: 3 14/28, 2nd number: 5/20
98/28 + 5/20 is 15/4.
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,
98/28 = 98 × 5/28 × 5 = 490/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
5/20 = 5 × 7/20 × 7 = 35/140 - Add the two like fractions:
490/140 + 35/140 = 490 + 35/140 = 525/140 - 525/140 simplified gives 15/4
- So, 98/28 + 5/20 = 15/4
In mixed form: 33/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28+10/20 98/56+5/20 98/28+5/40 98/28+15/20 98/84+5/20 98/28+5/60 98/28+25/20 98/28+35/20