Add 28/30 and 80/8
1st number: 28/30, 2nd number: 10 0/8
28/30 + 80/8 is 164/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
28/30 = 28 × 4/30 × 4 = 112/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
80/8 = 80 × 15/8 × 15 = 1200/120 - Add the two like fractions:
112/120 + 1200/120 = 112 + 1200/120 = 1312/120 - 1312/120 simplified gives 164/15
- So, 28/30 + 80/8 = 164/15
In mixed form: 1014/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30+80/8 28/60+80/8 28/30+80/16 84/30+80/8 28/90+80/8 28/30+80/24 28/30+80/40 28/30+80/56