Add 10/90 and 45/16
1st number: 10/90, 2nd number: 2 13/16
10/90 + 45/16 is 421/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
10/90 = 10 × 8/90 × 8 = 80/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
45/16 = 45 × 45/16 × 45 = 2025/720 - Add the two like fractions:
80/720 + 2025/720 = 80 + 2025/720 = 2105/720 - 2105/720 simplified gives 421/144
- So, 10/90 + 45/16 = 421/144
In mixed form: 2133/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/90+45/16 10/90+90/16 10/90+45/32 30/90+45/16 10/90+45/48 50/90+45/16 10/90+45/80 70/90+45/16