Add 90/45 and 90/8
1st number: 2 0/45, 2nd number: 11 2/8
90/45 + 90/8 is 53/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
90/45 = 90 × 8/45 × 8 = 720/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
90/8 = 90 × 45/8 × 45 = 4050/360 - Add the two like fractions:
720/360 + 4050/360 = 720 + 4050/360 = 4770/360 - 4770/360 simplified gives 53/4
- So, 90/45 + 90/8 = 53/4
In mixed form: 131/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45+90/16 90/45+90/24 90/45+90/40 90/45+90/56