Add 1/90 and 81/8
1st number: 1/90, 2nd number: 10 1/8
1/90 + 81/8 is 3649/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
1/90 = 1 × 4/90 × 4 = 4/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
81/8 = 81 × 45/8 × 45 = 3645/360 - Add the two like fractions:
4/360 + 3645/360 = 4 + 3645/360 = 3649/360 - So, 1/90 + 81/8 = 3649/360
In mixed form: 1049/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/90+81/8 1/90+81/16 3/90+81/8 1/90+81/24 5/90+81/8 1/90+81/40 7/90+81/8 1/90+81/56