Add 81/16 and 35/90
1st number: 5 1/16, 2nd number: 35/90
81/16 + 35/90 is 785/144.
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,
81/16 = 81 × 45/16 × 45 = 3645/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
35/90 = 35 × 8/90 × 8 = 280/720 - Add the two like fractions:
3645/720 + 280/720 = 3645 + 280/720 = 3925/720 - 3925/720 simplified gives 785/144
- So, 81/16 + 35/90 = 785/144
In mixed form: 565/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/16+70/90 81/32+35/90 81/48+35/90 81/80+35/90