Add 20/2 and 90/8
1st number: 10 0/2, 2nd number: 11 2/8
20/2 + 90/8 is 85/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 2 × 4 = 8,
20/2 = 20 × 4/2 × 4 = 80/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
90/8 = 90 × 1/8 × 1 = 90/8 - Add the two like fractions:
80/8 + 90/8 = 80 + 90/8 = 170/8 - 170/8 simplified gives 85/4
- So, 20/2 + 90/8 = 85/4
In mixed form: 211/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2+90/8 20/4+90/8 20/2+90/16 60/2+90/8 20/6+90/8 20/2+90/24 20/10+90/8 20/2+90/40 20/14+90/8 20/2+90/56