Add 90/8 and 45/90
1st number: 11 2/8, 2nd number: 45/90
90/8 + 45/90 is 47/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
90/8 = 90 × 45/8 × 45 = 4050/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
45/90 = 45 × 4/90 × 4 = 180/360 - Add the two like fractions:
4050/360 + 180/360 = 4050 + 180/360 = 4230/360 - 4230/360 simplified gives 47/4
- So, 90/8 + 45/90 = 47/4
In mixed form: 113/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/16+45/90 90/24+45/90 90/40+45/90 90/56+45/90