Add 28/16 and 98/90
1st number: 1 12/16, 2nd number: 1 8/90
28/16 + 98/90 is 511/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
28/16 = 28 × 45/16 × 45 = 1260/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
98/90 = 98 × 8/90 × 8 = 784/720 - Add the two like fractions:
1260/720 + 784/720 = 1260 + 784/720 = 2044/720 - 2044/720 simplified gives 511/180
- So, 28/16 + 98/90 = 511/180
In mixed form: 2151/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/16+98/90 28/32+98/90 84/16+98/90 28/48+98/90 28/80+98/90