Add 90/10 and 1/20
1st number: 9 0/10, 2nd number: 1/20
90/10 + 1/20 is 181/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
90/10 = 90 × 2/10 × 2 = 180/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
1/20 = 1 × 1/20 × 1 = 1/20 - Add the two like fractions:
180/20 + 1/20 = 180 + 1/20 = 181/20 - So, 90/10 + 1/20 = 181/20
In mixed form: 91/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10+2/20 90/20+1/20 90/10+1/40 90/10+3/20 90/30+1/20 90/10+1/60 90/10+5/20 90/50+1/20 90/10+7/20 90/70+1/20