Add 75/16 and 63/90
1st number: 4 11/16, 2nd number: 63/90
75/16 + 63/90 is 431/80.
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,
75/16 = 75 × 45/16 × 45 = 3375/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
63/90 = 63 × 8/90 × 8 = 504/720 - Add the two like fractions:
3375/720 + 504/720 = 3375 + 504/720 = 3879/720 - 3879/720 simplified gives 431/80
- So, 75/16 + 63/90 = 431/80
In mixed form: 531/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/32+63/90 75/48+63/90 75/80+63/90