Add 28/8 and 25/90
1st number: 3 4/8, 2nd number: 25/90
28/8 + 25/90 is 34/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
28/8 = 28 × 45/8 × 45 = 1260/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
25/90 = 25 × 4/90 × 4 = 100/360 - Add the two like fractions:
1260/360 + 100/360 = 1260 + 100/360 = 1360/360 - 1360/360 simplified gives 34/9
- So, 28/8 + 25/90 = 34/9
In mixed form: 37/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8+25/90 28/8+50/90 28/16+25/90 84/8+25/90 28/8+75/90 28/24+25/90 28/40+25/90 28/56+25/90