Add 15/16 and 80/90
15/16 + 80/90 is 263/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
15/16 = 15 × 45/16 × 45 = 675/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
80/90 = 80 × 8/90 × 8 = 640/720 - Add the two like fractions:
675/720 + 640/720 = 675 + 640/720 = 1315/720 - 1315/720 simplified gives 263/144
- So, 15/16 + 80/90 = 263/144
In mixed form: 1119/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/16+80/90 15/32+80/90 45/16+80/90 15/48+80/90 75/16+80/90 15/80+80/90