Add 1/20 and 90/30
1st number: 1/20, 2nd number: 3 0/30
1/20 + 90/30 is 61/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
1/20 = 1 × 3/20 × 3 = 3/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
90/30 = 90 × 2/30 × 2 = 180/60 - Add the two like fractions:
3/60 + 180/60 = 3 + 180/60 = 183/60 - 183/60 simplified gives 61/20
- So, 1/20 + 90/30 = 61/20
In mixed form: 31/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20+90/30 1/40+90/30 1/20+90/60 3/20+90/30 1/60+90/30 5/20+90/30 7/20+90/30