Add 7/28 and 16/20
7/28 + 16/20 is 21/20.
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,
7/28 = 7 × 5/28 × 5 = 35/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
16/20 = 16 × 7/20 × 7 = 112/140 - Add the two like fractions:
35/140 + 112/140 = 35 + 112/140 = 147/140 - 147/140 simplified gives 21/20
- So, 7/28 + 16/20 = 21/20
In mixed form: 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28+16/20 7/28+32/20 7/56+16/20 7/28+16/40 21/28+16/20 7/28+48/20 7/84+16/20 7/28+16/60 35/28+16/20 7/28+80/20 49/28+16/20