Add 7/28 and 20/16
1st number: 7/28, 2nd number: 1 4/16
7/28 + 20/16 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 28 × 4 = 112,
7/28 = 7 × 4/28 × 4 = 28/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
20/16 = 20 × 7/16 × 7 = 140/112 - Add the two like fractions:
28/112 + 140/112 = 28 + 140/112 = 168/112 - 168/112 simplified gives 3/2
- So, 7/28 + 20/16 = 3/2
In mixed form: 11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28+20/16 7/28+40/16 7/56+20/16 7/28+20/32 21/28+20/16 7/28+60/16 7/84+20/16 7/28+20/48 35/28+20/16 7/28+20/80 49/28+20/16