Add 16/20 and 27/28
16/20 + 27/28 is 247/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
16/20 = 16 × 7/20 × 7 = 112/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
27/28 = 27 × 5/28 × 5 = 135/140 - Add the two like fractions:
112/140 + 135/140 = 112 + 135/140 = 247/140 - So, 16/20 + 27/28 = 247/140
In mixed form: 1107/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20+27/28 16/20+54/28 16/40+27/28 16/20+27/56 48/20+27/28 16/20+81/28 16/60+27/28 16/20+27/84 80/20+27/28