Add 28/18 and 8/5
1st number: 1 10/18, 2nd number: 1 3/5
28/18 + 8/5 is 142/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
28/18 = 28 × 5/18 × 5 = 140/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
8/5 = 8 × 18/5 × 18 = 144/90 - Add the two like fractions:
140/90 + 144/90 = 140 + 144/90 = 284/90 - 284/90 simplified gives 142/45
- So, 28/18 + 8/5 = 142/45
In mixed form: 37/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18+8/5 28/18+16/5 28/36+8/5 28/18+8/10 84/18+8/5 28/18+24/5 28/54+8/5 28/18+8/15 28/18+40/5 28/90+8/5 28/18+8/25 28/18+56/5 28/18+8/35