Add 64/15 and 90/8
1st number: 4 4/15, 2nd number: 11 2/8
64/15 + 90/8 is 931/60.
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,
64/15 = 64 × 8/15 × 8 = 512/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
90/8 = 90 × 15/8 × 15 = 1350/120 - Add the two like fractions:
512/120 + 1350/120 = 512 + 1350/120 = 1862/120 - 1862/120 simplified gives 931/60
- So, 64/15 + 90/8 = 931/60
In mixed form: 1531/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/30+90/8 64/15+90/16 64/45+90/8 64/15+90/24 64/75+90/8 64/15+90/40 64/15+90/56