Add 25/30 and 81/8
1st number: 25/30, 2nd number: 10 1/8
25/30 + 81/8 is 263/24.
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,
25/30 = 25 × 4/30 × 4 = 100/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
81/8 = 81 × 15/8 × 15 = 1215/120 - Add the two like fractions:
100/120 + 1215/120 = 100 + 1215/120 = 1315/120 - 1315/120 simplified gives 263/24
- So, 25/30 + 81/8 = 263/24
In mixed form: 1023/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30+81/8 25/60+81/8 25/30+81/16 75/30+81/8 25/90+81/8 25/30+81/24 25/30+81/40 25/30+81/56