Add 14/28 and 54/20
1st number: 14/28, 2nd number: 2 14/20
14/28 + 54/20 is 16/5.
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,
14/28 = 14 × 5/28 × 5 = 70/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
54/20 = 54 × 7/20 × 7 = 378/140 - Add the two like fractions:
70/140 + 378/140 = 70 + 378/140 = 448/140 - 448/140 simplified gives 16/5
- So, 14/28 + 54/20 = 16/5
In mixed form: 31/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/56+54/20 14/28+54/40 42/28+54/20 14/84+54/20 14/28+54/60 70/28+54/20 98/28+54/20