Add 90/15 and 25/8
1st number: 6 0/15, 2nd number: 3 1/8
90/15 + 25/8 is 73/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
90/15 = 90 × 8/15 × 8 = 720/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
25/8 = 25 × 15/8 × 15 = 375/120 - Add the two like fractions:
720/120 + 375/120 = 720 + 375/120 = 1095/120 - 1095/120 simplified gives 73/8
- So, 90/15 + 25/8 = 73/8
In mixed form: 91/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+50/8 90/30+25/8 90/15+25/16 90/15+75/8 90/45+25/8 90/15+25/24 90/75+25/8 90/15+25/40 90/15+25/56