Add 63/90 and 45/16
1st number: 63/90, 2nd number: 2 13/16
63/90 + 45/16 is 281/80.
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,
63/90 = 63 × 8/90 × 8 = 504/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
45/16 = 45 × 45/16 × 45 = 2025/720 - Add the two like fractions:
504/720 + 2025/720 = 504 + 2025/720 = 2529/720 - 2529/720 simplified gives 281/80
- So, 63/90 + 45/16 = 281/80
In mixed form: 341/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/90+90/16 63/90+45/32 63/90+45/48 63/90+45/80