Add 7/28 and 90/16
1st number: 7/28, 2nd number: 5 10/16
7/28 + 90/16 is 47/8.
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,
90/16 = 90 × 7/16 × 7 = 630/112 - Add the two like fractions:
28/112 + 630/112 = 28 + 630/112 = 658/112 - 658/112 simplified gives 47/8
- So, 7/28 + 90/16 = 47/8
In mixed form: 57/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28+90/16 7/56+90/16 7/28+90/32 21/28+90/16 7/84+90/16 7/28+90/48 35/28+90/16 7/28+90/80 49/28+90/16