Add 20/10 and 90/28
1st number: 2 0/10, 2nd number: 3 6/28
20/10 + 90/28 is 73/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
20/10 = 20 × 14/10 × 14 = 280/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
90/28 = 90 × 5/28 × 5 = 450/140 - Add the two like fractions:
280/140 + 450/140 = 280 + 450/140 = 730/140 - 730/140 simplified gives 73/14
- So, 20/10 + 90/28 = 73/14
In mixed form: 53/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/10+90/28 20/10+90/56 60/10+90/28 20/30+90/28 20/10+90/84 20/50+90/28 20/70+90/28